v3.22.0

changelog.md

@@ -1,5 +1,24 @@
 # Changelog
 
+## 2025-12-31 - 3.22.0 - feat(workspace)
+add resizable markdown editor/preview split with draggable handle and markdown outlet styling/demo
+
+- Introduce a flexible split layout for the workspace markdown editor with a draggable resize handle (splitRatio, minPanelSize, dragging state, mouse handlers and cleanup).
+- Enhance dees-workspace-markdown: switch from grid to flex, add resize handle UI, prevent pointer selection while dragging, notify Monaco on resize.
+- Add comprehensive styling and demo content for dees-workspace-markdownoutlet (dark/light themed markdown styles, syntax highlighting classes, and demo scenarios).
+- Fix typescript-intellisense monaco model update: only set model value when content actually changed to avoid cursor resets.
+- Add markdown outlet demo helper and numerous screenshot/image assets (.playwright-mcp) for demos/documentation.
+
+## 2025-12-31 - 3.21.0 - feat(terminal)
+add dynamic bright/dark theming for terminal components and terminal preview
+
+- Add bright/dark theme PNG assets under .playwright-mcp for previews.
+- Replace hardcoded terminal background/colors with cssManager.bdTheme in workspace terminal and preview styles.
+- Introduce getTerminalTheme helper to compute xterm theme for bright/dark modes.
+- Subscribe to themeManager.themeObservable and apply updates to xterm (terminal.options.theme) so terminals update live on theme change.
+- Remove hardcoded background property/CSS var and unused background accessor from workspace terminal.
+- Ensure proper cleanup: unsubscribe theme subscriptions and dispose terminals in disconnectedCallback.
+
 ## 2025-12-31 - 3.20.1 - fix(dees-workspace)
 fix demo wrapper and workspace layout; always render terminal preview
 

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@design.estate/dees-catalog",
-  "version": "3.20.1",
+  "version": "3.22.0",
   "private": false,
   "description": "A comprehensive library that provides dynamic web components for building sophisticated and modern web applications using JavaScript and TypeScript.",
   "main": "dist_ts_web/index.js",

ts_web/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@design.estate/dees-catalog',
-  version: '3.20.1',
+  version: '3.22.0',
   description: 'A comprehensive library that provides dynamic web components for building sophisticated and modern web applications using JavaScript and TypeScript.'
 }

ts_web/elements/00group-simple/dees-simple-appdash/dees-simple-appdash.ts

@@ -417,7 +417,6 @@ export class DeesSimpleAppDash extends DeesElement {
     terminal.style.opacity = '0';
     terminal.style.transform = 'translateY(8px) scale(0.99)';
     terminal.style.transition = 'all 0.25s cubic-bezier(0.4, 0, 0.2, 1)';
-    terminal.background = 'hsl(220 13% 8%)';
     terminal.style.boxShadow = '0 25px 50px -12px rgb(0 0 0 / 0.5), 0 0 0 1px rgb(255 255 255 / 0.05)';
     terminal.style.maxWidth = `calc(${maincontainer.clientWidth}px -240px)`;
     terminal.style.maxHeight = `calc(${maincontainer.clientHeight}px - 24px)`;

ts_web/elements/00group-workspace/dees-workspace-markdown/dees-workspace-markdown.ts

@@ -6,7 +6,8 @@ import {
   type TemplateResult,
   css,
   cssManager,
-  domtools
+  domtools,
+  state,
 } from '@design.estate/dees-element';
 import { themeDefaultStyles } from '../../00theme.js';
 import { DeesWorkspaceMonaco } from '../dees-workspace-monaco/dees-workspace-monaco.js';
@@ -27,31 +28,113 @@ export class DeesWorkspaceMarkdown extends DeesElement {
     themeDefaultStyles,
     cssManager.defaultStyles,
     css`
-      /* TODO: Migrate hardcoded values to --dees-* CSS variables */
-      .gridcontainer {
+      :host {
+        display: block;
+        position: relative;
+        width: 100%;
+        height: 100%;
+      }
+
+      .splitContainer {
         position: absolute;
         height: 100%;
         width: 100%;
-        display: grid;
-        grid-template-columns: 60% 40%;
+        display: flex;
+        flex-direction: row;
       }
+
       .editorContainer {
         position: relative;
+        height: 100%;
+        min-width: 100px;
+        overflow: hidden;
       }
+
+      .resizeHandle {
+        width: 6px;
+        height: 100%;
+        background: ${cssManager.bdTheme('#e5e7eb', '#30363d')};
+        cursor: col-resize;
+        flex-shrink: 0;
+        transition: background 0.15s ease;
+        position: relative;
+      }
+
+      .resizeHandle:hover,
+      .resizeHandle.dragging {
+        background: ${cssManager.bdTheme('#3b82f6', '#58a6ff')};
+      }
+
+      .resizeHandle::after {
+        content: '';
+        position: absolute;
+        top: 50%;
+        left: 50%;
+        transform: translate(-50%, -50%);
+        width: 2px;
+        height: 32px;
+        background: ${cssManager.bdTheme('#9ca3af', '#6e7681')};
+        border-radius: 1px;
+        opacity: 0.6;
+      }
+
+      .resizeHandle:hover::after,
+      .resizeHandle.dragging::after {
+        background: ${cssManager.bdTheme('#ffffff', '#ffffff')};
+        opacity: 1;
+      }
+
       .outletContainer {
-        background: #111;
-        color: #fff;
-        font-family: 'Roboto Slab';
+        position: relative;
+        height: 100%;
+        min-width: 100px;
+        background: ${cssManager.bdTheme('#ffffff', '#0d1117')};
+        color: ${cssManager.bdTheme('#24292f', '#e6edf3')};
+        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
         padding: 20px;
-        overflow-y: scroll;
+        overflow-y: auto;
+        box-sizing: border-box;
+      }
+
+      /* Prevent text selection while dragging */
+      .splitContainer.dragging {
+        user-select: none;
+      }
+
+      .splitContainer.dragging .editorContainer,
+      .splitContainer.dragging .outletContainer {
+        pointer-events: none;
       }
     `,
   ];
 
+  /**
+   * Initial split ratio for the editor (left) panel.
+   * Value from 0 to 100 representing percentage width.
+   * Default is 50 (50/50 split).
+   */
+  @property({ type: Number })
+  accessor splitRatio: number = 50;
+
+  /**
+   * Minimum width percentage for either panel.
+   */
+  @property({ type: Number })
+  accessor minPanelSize: number = 10;
+
+  @state()
+  accessor currentSplitRatio: number = 50;
+
+  @state()
+  accessor isDragging: boolean = false;
+
+  private resizeHandleElement: HTMLElement;
+  private containerElement: HTMLElement;
+
   public render() {
     return html`
-      <div class="gridcontainer">
-        <div class="editorContainer">
+      <div class="splitContainer ${this.isDragging ? 'dragging' : ''}">
+        <div class="editorContainer" style="width: ${this.currentSplitRatio}%">
           <dees-workspace-monaco
             .language=${'markdown'}
             .content=${`# a test content
@@ -78,7 +161,11 @@ const hello = 'yes'
             wordWrap="bounded"
           ></dees-workspace-monaco>
         </div>
-        <div class="outletContainer">
+        <div
+          class="resizeHandle ${this.isDragging ? 'dragging' : ''}"
+          @mousedown=${this.handleMouseDown}
+        ></div>
+        <div class="outletContainer" style="width: ${100 - this.currentSplitRatio}%">
           <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
         </div>
       </div>
@@ -87,9 +174,17 @@ const hello = 'yes'
 
   public async firstUpdated(_changedPropertiesArg) {
     await super.firstUpdated(_changedPropertiesArg);
+
+    // Initialize current ratio from property
+    this.currentSplitRatio = this.splitRatio;
+
+    // Cache elements
+    this.containerElement = this.shadowRoot.querySelector('.splitContainer');
+    this.resizeHandleElement = this.shadowRoot.querySelector('.resizeHandle');
+
     const editor = this.shadowRoot.querySelector('dees-workspace-monaco') as DeesWorkspaceMonaco;
 
-    // lets care about wiring the markdown stuff.
+    // Wire up markdown rendering
     const markdownOutlet = this.shadowRoot.querySelector('dees-workspace-markdownoutlet');
     const smartmarkdownInstance = new domtools.plugins.smartmarkdown.SmartMarkdown();
     const mdParsedResult = await smartmarkdownInstance.getMdParsedResultFromMarkdown('loading...')
@@ -97,6 +192,64 @@ const hello = 'yes'
       await mdParsedResult.updateFromMarkdownString(contentArg)
       const html = mdParsedResult.html;
       markdownOutlet.updateHtmlText(html);
-    })
+    });
+  }
+
+  private handleMouseDown = (e: MouseEvent) => {
+    e.preventDefault();
+    this.isDragging = true;
+
+    document.addEventListener('mousemove', this.handleMouseMove);
+    document.addEventListener('mouseup', this.handleMouseUp);
+  };
+
+  private handleMouseMove = (e: MouseEvent) => {
+    if (!this.isDragging || !this.containerElement) return;
+
+    const containerRect = this.containerElement.getBoundingClientRect();
+    const containerWidth = containerRect.width;
+    const mouseX = e.clientX - containerRect.left;
+
+    // Calculate percentage, accounting for the resize handle width (6px)
+    let newRatio = (mouseX / containerWidth) * 100;
+
+    // Clamp to min/max
+    newRatio = Math.max(this.minPanelSize, Math.min(100 - this.minPanelSize, newRatio));
+
+    this.currentSplitRatio = newRatio;
+  };
+
+  private handleMouseUp = () => {
+    this.isDragging = false;
+    document.removeEventListener('mousemove', this.handleMouseMove);
+    document.removeEventListener('mouseup', this.handleMouseUp);
+
+    // Trigger resize on monaco editor
+    const editor = this.shadowRoot.querySelector('dees-workspace-monaco') as DeesWorkspaceMonaco;
+    if (editor) {
+      // Monaco needs to be notified of size changes
+      window.dispatchEvent(new Event('resize'));
+    }
+  };
+
+  async disconnectedCallback() {
+    await super.disconnectedCallback();
+    // Clean up event listeners
+    document.removeEventListener('mousemove', this.handleMouseMove);
+    document.removeEventListener('mouseup', this.handleMouseUp);
+  }
+
+  /**
+   * Programmatically set the split ratio
+   */
+  public setSplitRatio(ratio: number) {
+    this.currentSplitRatio = Math.max(this.minPanelSize, Math.min(100 - this.minPanelSize, ratio));
+  }
+
+  /**
+   * Reset to initial split ratio
+   */
+  public resetSplitRatio() {
+    this.currentSplitRatio = this.splitRatio;
   }
 }

ts_web/elements/00group-workspace/dees-workspace-markdownoutlet/dees-workspace-markdownoutlet.demo.ts

@@ -0,0 +1,289 @@
+import { html, css } from '@design.estate/dees-element';
+import '@design.estate/dees-wcctools/demotools';
+import '../../dees-panel/dees-panel.js';
+import type { DeesWorkspaceMarkdownoutlet } from './dees-workspace-markdownoutlet.js';
+
+export const demoFunc = () => html`
+  <dees-demowrapper>
+    <style>
+      ${css`
+        .demo-container {
+          display: flex;
+          flex-direction: column;
+          gap: 24px;
+          padding: 24px;
+          max-width: 900px;
+          margin: 0 auto;
+        }
+      `}
+    </style>
+
+    <div class="demo-container">
+      <!-- Demo 1: Headings -->
+      <dees-panel
+        .title=${'Headings'}
+        .subtitle=${'All heading levels from H1 to H6'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <h1>Heading Level 1</h1>
+            <h2>Heading Level 2</h2>
+            <h3>Heading Level 3</h3>
+            <h4>Heading Level 4</h4>
+            <h5>Heading Level 5</h5>
+            <h6>Heading Level 6</h6>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 2: Text Formatting -->
+      <dees-panel
+        .title=${'Text Formatting'}
+        .subtitle=${'Bold, italic, links, code, and keyboard input'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <p>This is a paragraph with <strong>bold text</strong> and <em>italic text</em>.</p>
+            <p>You can also use <strong><em>bold italic</em></strong> for emphasis.</p>
+            <p>Here's a <a href="#">link example</a> and some <code>inline code</code>.</p>
+            <p>Press <kbd>Ctrl</kbd> + <kbd>C</kbd> to copy text.</p>
+            <hr>
+            <p>Above is a horizontal rule separator.</p>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 3: Lists -->
+      <dees-panel
+        .title=${'Lists'}
+        .subtitle=${'Ordered, unordered, and task lists'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <h3>Unordered List</h3>
+            <ul>
+              <li>First item</li>
+              <li>Second item
+                <ul>
+                  <li>Nested item 1</li>
+                  <li>Nested item 2</li>
+                </ul>
+              </li>
+              <li>Third item</li>
+            </ul>
+
+            <h3>Ordered List</h3>
+            <ol>
+              <li>Step one</li>
+              <li>Step two</li>
+              <li>Step three</li>
+            </ol>
+
+            <h3>Task List</h3>
+            <ul>
+              <li class="task-list-item"><input type="checkbox" checked disabled> Completed task</li>
+              <li class="task-list-item"><input type="checkbox" disabled> Pending task</li>
+              <li class="task-list-item"><input type="checkbox" disabled> Another task</li>
+            </ul>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 4: Code Blocks -->
+      <dees-panel
+        .title=${'Code Blocks'}
+        .subtitle=${'Syntax highlighted code examples'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <p>Inline code: <code>const greeting = "Hello, World!";</code></p>
+
+            <h3>TypeScript Example</h3>
+            <pre><code><span class="hljs-keyword">import</span> { html, css } <span class="hljs-keyword">from</span> <span class="hljs-string">'@design.estate/dees-element'</span>;
+
+<span class="hljs-keyword">interface</span> <span class="hljs-title">IUser</span> {
+  <span class="hljs-attr">name</span>: <span class="hljs-built_in">string</span>;
+  <span class="hljs-attr">email</span>: <span class="hljs-built_in">string</span>;
+  <span class="hljs-attr">age</span>?: <span class="hljs-built_in">number</span>;
+}
+
+<span class="hljs-keyword">const</span> <span class="hljs-title">getUser</span> = <span class="hljs-keyword">async</span> (<span class="hljs-attr">id</span>: <span class="hljs-built_in">string</span>): <span class="hljs-built_in">Promise</span>&lt;IUser&gt; =&gt; {
+  <span class="hljs-keyword">const</span> response = <span class="hljs-keyword">await</span> fetch(\`/api/users/\${id}\`);
+  <span class="hljs-keyword">return</span> response.json();
+};</code></pre>
+
+            <h3>JSON Example</h3>
+            <pre><code>{
+  <span class="hljs-attr">"name"</span>: <span class="hljs-string">"dees-catalog"</span>,
+  <span class="hljs-attr">"version"</span>: <span class="hljs-string">"3.0.0"</span>,
+  <span class="hljs-attr">"dependencies"</span>: {
+    <span class="hljs-attr">"@design.estate/dees-element"</span>: <span class="hljs-string">"^2.0.0"</span>
+  }
+}</code></pre>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 5: Tables -->
+      <dees-panel
+        .title=${'Tables'}
+        .subtitle=${'Styled tables with alternating rows'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <table>
+              <thead>
+                <tr>
+                  <th>Feature</th>
+                  <th>Status</th>
+                  <th>Priority</th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr>
+                  <td>Dark mode support</td>
+                  <td>Completed</td>
+                  <td>High</td>
+                </tr>
+                <tr>
+                  <td>Responsive design</td>
+                  <td>In Progress</td>
+                  <td>Medium</td>
+                </tr>
+                <tr>
+                  <td>Accessibility</td>
+                  <td>Planned</td>
+                  <td>High</td>
+                </tr>
+                <tr>
+                  <td>Documentation</td>
+                  <td>In Progress</td>
+                  <td>Low</td>
+                </tr>
+              </tbody>
+            </table>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 6: Blockquotes & Alerts -->
+      <dees-panel
+        .title=${'Blockquotes & Alerts'}
+        .subtitle=${'Quotes and GitHub-style alerts'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <blockquote>
+              <p>This is a standard blockquote. It's great for highlighting important information or quotes from other sources.</p>
+            </blockquote>
+
+            <div class="markdown-alert markdown-alert-note">
+              <p><strong>Note:</strong> This is an informational note to draw attention to important details.</p>
+            </div>
+
+            <div class="markdown-alert markdown-alert-tip">
+              <p><strong>Tip:</strong> Here's a helpful tip to improve your workflow.</p>
+            </div>
+
+            <div class="markdown-alert markdown-alert-important">
+              <p><strong>Important:</strong> This information is crucial for understanding the topic.</p>
+            </div>
+
+            <div class="markdown-alert markdown-alert-warning">
+              <p><strong>Warning:</strong> Be careful when performing this action.</p>
+            </div>
+
+            <div class="markdown-alert markdown-alert-caution">
+              <p><strong>Caution:</strong> This action may have unintended consequences.</p>
+            </div>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+
+      <!-- Demo 7: Full Document -->
+      <dees-panel
+        .title=${'Full Document'}
+        .subtitle=${'A complete markdown document example'}
+        .runAfterRender=${async (panelEl: HTMLElement) => {
+          const outlet = panelEl.querySelector('dees-workspace-markdownoutlet') as DeesWorkspaceMarkdownoutlet;
+          await outlet?.updateHtmlText(`
+            <h1>Getting Started Guide</h1>
+            <p>Welcome to the <strong>dees-catalog</strong> component library. This guide will help you get up and running quickly.</p>
+
+            <h2>Installation</h2>
+            <p>Install the package using your preferred package manager:</p>
+            <pre><code><span class="hljs-comment"># Using pnpm (recommended)</span>
+pnpm add @design.estate/dees-catalog
+
+<span class="hljs-comment"># Using npm</span>
+npm install @design.estate/dees-catalog</code></pre>
+
+            <h2>Basic Usage</h2>
+            <p>Import and use components in your TypeScript files:</p>
+            <pre><code><span class="hljs-keyword">import</span> { DeesButton } <span class="hljs-keyword">from</span> <span class="hljs-string">'@design.estate/dees-catalog'</span>;
+
+<span class="hljs-comment">// Use in your templates</span>
+html\`&lt;dees-button&gt;Click me&lt;/dees-button&gt;\`</code></pre>
+
+            <div class="markdown-alert markdown-alert-tip">
+              <p><strong>Tip:</strong> Check the demo showcase for live examples of all components.</p>
+            </div>
+
+            <h2>Available Components</h2>
+            <table>
+              <thead>
+                <tr>
+                  <th>Component</th>
+                  <th>Description</th>
+                </tr>
+              </thead>
+              <tbody>
+                <tr>
+                  <td><code>dees-button</code></td>
+                  <td>Primary button component</td>
+                </tr>
+                <tr>
+                  <td><code>dees-input-text</code></td>
+                  <td>Text input field</td>
+                </tr>
+                <tr>
+                  <td><code>dees-table</code></td>
+                  <td>Data table with sorting</td>
+                </tr>
+                <tr>
+                  <td><code>dees-modal</code></td>
+                  <td>Modal dialog</td>
+                </tr>
+              </tbody>
+            </table>
+
+            <h2>Next Steps</h2>
+            <ul>
+              <li>Explore the <a href="#">component documentation</a></li>
+              <li>Check out the <a href="#">theming guide</a></li>
+              <li>Join our <a href="#">community Discord</a></li>
+            </ul>
+
+            <blockquote>
+              <p>"The best component library is one that gets out of your way." — Design Systems Team</p>
+            </blockquote>
+          `);
+        }}
+      >
+        <dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>
+      </dees-panel>
+    </div>
+  </dees-demowrapper>
+`;

ts_web/elements/00group-workspace/dees-workspace-markdownoutlet/dees-workspace-markdownoutlet.ts

@@ -1,4 +1,13 @@
-import { customElement, DeesElement, html, type TemplateResult } from '@design.estate/dees-element';
+import {
+  customElement,
+  DeesElement,
+  html,
+  type TemplateResult,
+  css,
+  cssManager,
+} from '@design.estate/dees-element';
+import { themeDefaultStyles } from '../../00theme.js';
+import { demoFunc } from './dees-workspace-markdownoutlet.demo.js';
 
 declare global {
   interface HTMLElementTagNameMap {
@@ -9,27 +18,382 @@ declare global {
 @customElement('dees-workspace-markdownoutlet')
 export class DeesWorkspaceMarkdownoutlet extends DeesElement {
   // DEMO
-  public static demo = () => html`<dees-workspace-markdownoutlet></dees-workspace-markdownoutlet>`;
+  public static demo = demoFunc;
+
+  public static styles = [
+    themeDefaultStyles,
+    cssManager.defaultStyles,
+    css`
+      :host {
+        display: block;
+        font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Noto Sans', Helvetica, Arial, sans-serif;
+        font-size: 16px;
+        line-height: 1.6;
+        color: ${cssManager.bdTheme('#24292f', '#e6edf3')};
+      }
+
+      .outlet {
+        word-wrap: break-word;
+      }
+
+      /* Headings */
+      h1, h2, h3, h4, h5, h6 {
+        margin-top: 24px;
+        margin-bottom: 16px;
+        font-weight: 600;
+        line-height: 1.25;
+        color: ${cssManager.bdTheme('#1f2328', '#f0f6fc')};
+      }
+
+      h1 {
+        font-size: 2em;
+        padding-bottom: 0.3em;
+        border-bottom: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+      }
+
+      h2 {
+        font-size: 1.5em;
+        padding-bottom: 0.3em;
+        border-bottom: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+      }
+
+      h3 {
+        font-size: 1.25em;
+      }
+
+      h4 {
+        font-size: 1em;
+      }
+
+      h5 {
+        font-size: 0.875em;
+      }
+
+      h6 {
+        font-size: 0.85em;
+        color: ${cssManager.bdTheme('#656d76', '#8b949e')};
+      }
+
+      /* Paragraphs and text */
+      p {
+        margin-top: 0;
+        margin-bottom: 16px;
+      }
+
+      /* Links */
+      a {
+        color: ${cssManager.bdTheme('#0969da', '#58a6ff')};
+        text-decoration: none;
+      }
+
+      a:hover {
+        text-decoration: underline;
+      }
+
+      /* Strong and emphasis */
+      strong {
+        font-weight: 600;
+        color: ${cssManager.bdTheme('#1f2328', '#f0f6fc')};
+      }
+
+      em {
+        font-style: italic;
+      }
+
+      /* Lists */
+      ul, ol {
+        margin-top: 0;
+        margin-bottom: 16px;
+        padding-left: 2em;
+      }
+
+      li {
+        margin-top: 4px;
+      }
+
+      li + li {
+        margin-top: 4px;
+      }
+
+      ul ul, ul ol, ol ul, ol ol {
+        margin-top: 0;
+        margin-bottom: 0;
+      }
+
+      /* Blockquotes */
+      blockquote {
+        margin: 0 0 16px 0;
+        padding: 0 1em;
+        color: ${cssManager.bdTheme('#656d76', '#8b949e')};
+        border-left: 4px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+      }
+
+      blockquote > :first-child {
+        margin-top: 0;
+      }
+
+      blockquote > :last-child {
+        margin-bottom: 0;
+      }
+
+      /* Inline code */
+      code {
+        padding: 0.2em 0.4em;
+        margin: 0;
+        font-size: 85%;
+        font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
+        background-color: ${cssManager.bdTheme('rgba(175, 184, 193, 0.2)', 'rgba(110, 118, 129, 0.4)')};
+        border-radius: 6px;
+        white-space: break-spaces;
+      }
+
+      /* Code blocks */
+      pre {
+        margin-top: 0;
+        margin-bottom: 16px;
+        padding: 16px;
+        overflow: auto;
+        font-size: 85%;
+        line-height: 1.45;
+        font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
+        background-color: ${cssManager.bdTheme('#f6f8fa', '#161b22')};
+        border-radius: 6px;
+        word-wrap: normal;
+      }
+
+      pre code {
+        display: block;
+        padding: 0;
+        margin: 0;
+        overflow: visible;
+        line-height: inherit;
+        word-wrap: normal;
+        background-color: transparent;
+        border: 0;
+        font-size: 100%;
+        white-space: pre;
+      }
+
+      /* Tables */
+      table {
+        width: max-content;
+        max-width: 100%;
+        margin-top: 0;
+        margin-bottom: 16px;
+        border-spacing: 0;
+        border-collapse: collapse;
+        overflow: auto;
+        display: block;
+      }
+
+      table th {
+        font-weight: 600;
+        padding: 6px 13px;
+        border: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+        background-color: ${cssManager.bdTheme('#f6f8fa', '#161b22')};
+        color: ${cssManager.bdTheme('#1f2328', '#e6edf3')};
+      }
+
+      table td {
+        padding: 6px 13px;
+        border: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+        color: ${cssManager.bdTheme('#1f2328', '#e6edf3')};
+      }
+
+      table tr {
+        background-color: ${cssManager.bdTheme('#ffffff', '#0d1117')};
+        border-top: 1px solid ${cssManager.bdTheme('#d1d9e0', '#21262d')};
+      }
+
+      table tr:nth-child(2n) {
+        background-color: ${cssManager.bdTheme('#f6f8fa', '#161b22')};
+      }
+
+      /* Horizontal rules */
+      hr {
+        height: 4px;
+        padding: 0;
+        margin: 24px 0;
+        background-color: ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+        border: 0;
+        border-radius: 2px;
+      }
+
+      /* Images */
+      img {
+        max-width: 100%;
+        box-sizing: border-box;
+        border-radius: 6px;
+      }
+
+      /* Task lists */
+      .task-list-item {
+        list-style-type: none;
+      }
+
+      .task-list-item input {
+        margin: 0 0.2em 0.25em -1.4em;
+        vertical-align: middle;
+      }
+
+      /* Definition lists */
+      dl {
+        padding: 0;
+      }
+
+      dl dt {
+        padding: 0;
+        margin-top: 16px;
+        font-size: 1em;
+        font-style: italic;
+        font-weight: 600;
+      }
+
+      dl dd {
+        padding: 0 16px;
+        margin-bottom: 16px;
+      }
+
+      /* Keyboard input */
+      kbd {
+        display: inline-block;
+        padding: 3px 5px;
+        font-size: 11px;
+        font-family: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, 'Liberation Mono', monospace;
+        line-height: 10px;
+        color: ${cssManager.bdTheme('#1f2328', '#e6edf3')};
+        vertical-align: middle;
+        background-color: ${cssManager.bdTheme('#f6f8fa', '#161b22')};
+        border: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+        border-radius: 6px;
+        box-shadow: inset 0 -1px 0 ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+      }
+
+      /* Footnotes */
+      .footnotes {
+        font-size: 12px;
+        color: ${cssManager.bdTheme('#656d76', '#8b949e')};
+        border-top: 1px solid ${cssManager.bdTheme('#d1d9e0', '#30363d')};
+        padding-top: 16px;
+        margin-top: 32px;
+      }
+
+      /* Alerts/Admonitions */
+      .markdown-alert {
+        padding: 8px 16px;
+        margin-bottom: 16px;
+        border-left: 4px solid;
+        border-radius: 6px;
+      }
+
+      .markdown-alert-note {
+        border-color: ${cssManager.bdTheme('#0969da', '#58a6ff')};
+        background-color: ${cssManager.bdTheme('rgba(9, 105, 218, 0.1)', 'rgba(56, 139, 253, 0.1)')};
+      }
+
+      .markdown-alert-warning {
+        border-color: ${cssManager.bdTheme('#bf8700', '#d29922')};
+        background-color: ${cssManager.bdTheme('rgba(191, 135, 0, 0.1)', 'rgba(187, 128, 9, 0.1)')};
+      }
+
+      .markdown-alert-important {
+        border-color: ${cssManager.bdTheme('#8250df', '#a371f7')};
+        background-color: ${cssManager.bdTheme('rgba(130, 80, 223, 0.1)', 'rgba(163, 113, 247, 0.1)')};
+      }
+
+      .markdown-alert-caution {
+        border-color: ${cssManager.bdTheme('#cf222e', '#f85149')};
+        background-color: ${cssManager.bdTheme('rgba(207, 34, 46, 0.1)', 'rgba(248, 81, 73, 0.1)')};
+      }
+
+      .markdown-alert-tip {
+        border-color: ${cssManager.bdTheme('#1a7f37', '#3fb950')};
+        background-color: ${cssManager.bdTheme('rgba(26, 127, 55, 0.1)', 'rgba(46, 160, 67, 0.1)')};
+      }
+
+      /* Syntax highlighting for code blocks */
+      .hljs-comment,
+      .hljs-quote {
+        color: ${cssManager.bdTheme('#6a737d', '#8b949e')};
+      }
+
+      .hljs-keyword,
+      .hljs-selector-tag,
+      .hljs-addition {
+        color: ${cssManager.bdTheme('#d73a49', '#ff7b72')};
+      }
+
+      .hljs-number,
+      .hljs-string,
+      .hljs-meta .hljs-meta-string,
+      .hljs-literal,
+      .hljs-doctag,
+      .hljs-regexp {
+        color: ${cssManager.bdTheme('#032f62', '#a5d6ff')};
+      }
+
+      .hljs-title,
+      .hljs-section,
+      .hljs-name,
+      .hljs-selector-id,
+      .hljs-selector-class {
+        color: ${cssManager.bdTheme('#6f42c1', '#d2a8ff')};
+      }
+
+      .hljs-attribute,
+      .hljs-attr,
+      .hljs-variable,
+      .hljs-template-variable,
+      .hljs-class .hljs-title,
+      .hljs-type {
+        color: ${cssManager.bdTheme('#005cc5', '#79c0ff')};
+      }
+
+      .hljs-symbol,
+      .hljs-bullet,
+      .hljs-subst,
+      .hljs-meta,
+      .hljs-meta .hljs-keyword,
+      .hljs-selector-attr,
+      .hljs-selector-pseudo,
+      .hljs-link {
+        color: ${cssManager.bdTheme('#e36209', '#ffa657')};
+      }
+
+      .hljs-built_in,
+      .hljs-deletion {
+        color: ${cssManager.bdTheme('#b31d28', '#ffa198')};
+      }
+
+      .hljs-formula {
+        background-color: ${cssManager.bdTheme('#f6f8fa', '#161b22')};
+      }
+
+      .hljs-emphasis {
+        font-style: italic;
+      }
+
+      .hljs-strong {
+        font-weight: bold;
+      }
+    `,
+  ];
 
   // INSTANCE
   private outlet: HTMLElement;
 
   public render(): TemplateResult {
     return html`
-      <div class="outlet markdown-body">
-        <h1>Hi there</h1>
+      <div class="outlet">
+        <h1>Markdown Preview</h1>
+        <p>Content will appear here when markdown is parsed.</p>
       </div>
     `;
   }
 
   public async firstUpdated(_changedProperties: Map<string | number | symbol, unknown>) {
     await super.firstUpdated(_changedProperties);
-    const styleElement = document.createElement('style');
-    const cssText = await (
-      await fetch('https://unpkg.com/github-markdown-css@5.1.0/github-markdown-dark.css')
-    ).text();
-    styleElement.textContent = cssText;
-    this.shadowRoot.append(styleElement);
+    this.outlet = this.shadowRoot.querySelector('.outlet');
   }
 
   public async updateHtmlText(htmlTextArg: string) {

ts_web/elements/00group-workspace/dees-workspace-terminal-preview/dees-workspace-terminal-preview.ts

@@ -55,6 +55,7 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
   private fitAddon: FitAddon | null = null;
   private lastLineCount: number = 0;
   private resizeObserver: ResizeObserver | null = null;
+  private terminalThemeSubscription: any = null;
 
   public static styles = [
     themeDefaultStyles,
@@ -69,8 +70,8 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
         height: 100%;
         border-radius: 8px;
         overflow: hidden;
-        background: #000000;
-        border: 1px solid hsl(0 0% 20%);
+        background: ${cssManager.bdTheme('#ffffff', '#000000')};
+        border: 1px solid ${cssManager.bdTheme('hsl(0 0% 85%)', 'hsl(0 0% 20%)')};
         display: flex;
         flex-direction: column;
       }
@@ -80,20 +81,20 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
         align-items: center;
         gap: 8px;
         padding: 8px 12px;
-        background: hsl(0 0% 10%);
+        background: ${cssManager.bdTheme('hsl(0 0% 96%)', 'hsl(0 0% 10%)')};
         font-size: 12px;
         font-family: 'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace;
-        color: hsl(0 0% 60%);
-        border-bottom: 1px solid hsl(0 0% 20%);
+        color: ${cssManager.bdTheme('hsl(0 0% 40%)', 'hsl(0 0% 60%)')};
+        border-bottom: 1px solid ${cssManager.bdTheme('hsl(0 0% 85%)', 'hsl(0 0% 20%)')};
         flex-shrink: 0;
       }
 
       .terminal-header-icon {
-        color: hsl(0 0% 50%);
+        color: ${cssManager.bdTheme('hsl(0 0% 50%)', 'hsl(0 0% 50%)')};
       }
 
       .terminal-header-command {
-        color: hsl(0 0% 80%);
+        color: ${cssManager.bdTheme('hsl(0 0% 20%)', 'hsl(0 0% 80%)')};
         font-weight: 500;
       }
 
@@ -148,8 +149,8 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
       }
 
       .xterm .composition-view {
-        background: #000000;
-        color: #fff;
+        background: ${cssManager.bdTheme('#ffffff', '#000000')};
+        color: ${cssManager.bdTheme('#333333', '#ffffff')};
         display: none;
         position: absolute;
         white-space: nowrap;
@@ -161,7 +162,7 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
       }
 
       .xterm .xterm-viewport {
-        background-color: #000000;
+        background-color: ${cssManager.bdTheme('#ffffff', '#000000')};
         overflow-y: scroll;
         cursor: default;
         position: absolute;
@@ -243,16 +244,16 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
       }
 
       .xterm .xterm-viewport::-webkit-scrollbar-track {
-        background: hsl(0 0% 8%);
+        background: ${cssManager.bdTheme('hsl(0 0% 96%)', 'hsl(0 0% 8%)')};
       }
 
       .xterm .xterm-viewport::-webkit-scrollbar-thumb {
-        background: hsl(0 0% 25%);
+        background: ${cssManager.bdTheme('hsl(0 0% 80%)', 'hsl(0 0% 25%)')};
         border-radius: 4px;
       }
 
       .xterm .xterm-viewport::-webkit-scrollbar-thumb:hover {
-        background: hsl(0 0% 35%);
+        background: ${cssManager.bdTheme('hsl(0 0% 70%)', 'hsl(0 0% 35%)')};
       }
     `,
   ];
@@ -271,6 +272,27 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
     `;
   }
 
+  /**
+   * Get terminal theme colors based on bright/dark mode
+   */
+  private getTerminalTheme(isBright: boolean) {
+    return isBright
+      ? {
+          background: '#ffffff',
+          foreground: '#333333',
+          cursor: '#333333',
+          cursorAccent: '#ffffff',
+          selectionBackground: 'rgba(0, 0, 0, 0.2)',
+        }
+      : {
+          background: '#000000',
+          foreground: '#cccccc',
+          cursor: '#cccccc',
+          cursorAccent: '#000000',
+          selectionBackground: 'rgba(255, 255, 255, 0.2)',
+        };
+  }
+
   public async firstUpdated(
     _changedProperties: Map<string | number | symbol, unknown>
   ): Promise<void> {
@@ -279,6 +301,10 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
     const container = this.shadowRoot?.getElementById('xterm-container');
     if (!container) return;
 
+    // Get current theme from domtools
+    const domtoolsInstance = await this.domtoolsPromise;
+    const isBright = domtoolsInstance.themeManager.goBrightBoolean;
+
     // Create xterm terminal in read-only mode
     this.terminal = new Terminal({
       convertEol: true,
@@ -286,13 +312,17 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
       disableStdin: true,
       fontSize: 12,
       fontFamily: "'SF Mono', 'Monaco', 'Inconsolata', 'Fira Code', monospace",
-      theme: {
-        background: '#000000',
-        foreground: '#cccccc',
-      },
+      theme: this.getTerminalTheme(isBright),
       scrollback: 1000,
     });
 
+    // Subscribe to theme changes
+    this.terminalThemeSubscription = domtoolsInstance.themeManager.themeObservable.subscribe((goBright: boolean) => {
+      if (this.terminal) {
+        this.terminal.options.theme = this.getTerminalTheme(goBright);
+      }
+    });
+
     this.fitAddon = new FitAddon();
     this.terminal.loadAddon(this.fitAddon);
     this.terminal.open(container);
@@ -334,6 +364,10 @@ export class DeesWorkspaceTerminalPreview extends DeesElement {
       this.resizeObserver.disconnect();
       this.resizeObserver = null;
     }
+    if (this.terminalThemeSubscription) {
+      this.terminalThemeSubscription.unsubscribe();
+      this.terminalThemeSubscription = null;
+    }
     if (this.terminal) {
       this.terminal.dispose();
       this.terminal = null;

ts_web/elements/00group-workspace/dees-workspace-terminal/dees-workspace-terminal.ts

@@ -47,9 +47,6 @@ export class DeesWorkspaceTerminal extends DeesElement {
   @property()
   accessor environmentVariables: { [key: string]: string } = {};
 
-  @property()
-  accessor background: string = '#000000';
-
   /**
    * Promise that resolves when the environment is ready.
    * @deprecated Use executionEnvironment directly
@@ -57,6 +54,9 @@ export class DeesWorkspaceTerminal extends DeesElement {
   private environmentDeferred = new domtools.plugins.smartpromise.Deferred<IExecutionEnvironment>();
   public environmentPromise = this.environmentDeferred.promise;
 
+  // Theme subscription for dynamic theme updates
+  private terminalThemeSubscription: any = null;
+
   constructor() {
     super();
     this.resizeObserver = new ResizeObserver((entries) => {
@@ -72,10 +72,9 @@ export class DeesWorkspaceTerminal extends DeesElement {
     themeDefaultStyles,
     cssManager.defaultStyles,
     css`
-      /* TODO: Migrate hardcoded values to --dees-* CSS variables */
       :host {
         padding: 20px;
-        background: var(--dees-terminal-background, #000000);
+        background: ${cssManager.bdTheme('#ffffff', '#000000')};
         position: absolute;
         height: 100%;
         width: 100%;
@@ -170,8 +169,8 @@ export class DeesWorkspaceTerminal extends DeesElement {
 
       .xterm .composition-view {
         /* TODO: Composition position got messed up somewhere */
-        background: var(--dees-terminal-background, #000000);
-        color: #fff;
+        background: ${cssManager.bdTheme('#ffffff', '#000000')};
+        color: ${cssManager.bdTheme('#333333', '#ffffff')};
         display: none;
         position: absolute;
         white-space: nowrap;
@@ -184,7 +183,7 @@ export class DeesWorkspaceTerminal extends DeesElement {
 
       .xterm .xterm-viewport {
         /* On OS X this is required in order for the scroll bar to appear fully opaque */
-        background-color: var(--dees-terminal-background, #000000);
+        background-color: ${cssManager.bdTheme('#ffffff', '#000000')};
         overflow-y: scroll;
         cursor: default;
         position: absolute;
@@ -275,25 +274,51 @@ export class DeesWorkspaceTerminal extends DeesElement {
   private fitAddon: FitAddon;
   private terminal: Terminal | null = null;
 
+  /**
+   * Get terminal theme colors based on bright/dark mode
+   */
+  private getTerminalTheme(isBright: boolean) {
+    return isBright
+      ? {
+          background: '#ffffff',
+          foreground: '#333333',
+          cursor: '#333333',
+          cursorAccent: '#ffffff',
+          selectionBackground: 'rgba(0, 0, 0, 0.2)',
+        }
+      : {
+          background: '#000000',
+          foreground: '#cccccc',
+          cursor: '#cccccc',
+          cursorAccent: '#000000',
+          selectionBackground: 'rgba(255, 255, 255, 0.2)',
+        };
+  }
+
   public async firstUpdated(
     _changedProperties: Map<string | number | symbol, unknown>
   ): Promise<void> {
-    const domtools = await this.domtoolsPromise;
+    const domtoolsInstance = await this.domtoolsPromise;
     super.firstUpdated(_changedProperties);
 
-    // Sync CSS variable with background property
-    this.style.setProperty('--dees-terminal-background', this.background);
+    // Get current theme
+    const isBright = domtoolsInstance.themeManager.goBrightBoolean;
 
     const container = this.shadowRoot.getElementById('container');
 
     const term = new Terminal({
       convertEol: true,
       cursorBlink: true,
-      theme: {
-        background: this.background,
-      },
+      theme: this.getTerminalTheme(isBright),
     });
     this.terminal = term;
+
+    // Subscribe to theme changes
+    this.terminalThemeSubscription = domtoolsInstance.themeManager.themeObservable.subscribe((goBright: boolean) => {
+      if (this.terminal) {
+        this.terminal.options.theme = this.getTerminalTheme(goBright);
+      }
+    });
     this.fitAddon = new FitAddon();
     term.loadAddon(this.fitAddon);
 
@@ -383,6 +408,14 @@ export class DeesWorkspaceTerminal extends DeesElement {
 
   async disconnectedCallback(): Promise<void> {
     this.resizeObserver.unobserve(this);
+    if (this.terminalThemeSubscription) {
+      this.terminalThemeSubscription.unsubscribe();
+      this.terminalThemeSubscription = null;
+    }
+    if (this.terminal) {
+      this.terminal.dispose();
+      this.terminal = null;
+    }
     await super.disconnectedCallback();
   }
 

ts_web/elements/00group-workspace/dees-workspace/typescript-intellisense.ts

@@ -378,7 +378,10 @@ export class TypeScriptIntelliSenseManager {
     const existingModel = this.monacoInstance.editor.getModel(uri);
 
     if (existingModel) {
+      // Only update if content actually changed (prevents cursor reset)
+      if (existingModel.getValue() !== content) {
         existingModel.setValue(content);
+      }
     } else {
       const language = this.getLanguageFromPath(path);
       this.monacoInstance.editor.createModel(content, language, uri);