diff --git a/ts_web/elements/dees-appui-base.demo.ts b/ts_web/elements/dees-appui-base.demo.ts
index 27a2210..e5b17f1 100644
--- a/ts_web/elements/dees-appui-base.demo.ts
+++ b/ts_web/elements/dees-appui-base.demo.ts
@@ -72,12 +72,13 @@ export const demoFunc = () => {
   ];
 
   // Selector options (second sidebar)
-  const selectorOptions: ISelectionOption[] = [
-    { key: 'Overview', action: () => console.log('Overview selected') },
-    { key: 'Components', action: () => console.log('Components selected') },
-    { key: 'Services', action: () => console.log('Services selected') },
-    { key: 'Database', action: () => console.log('Database selected') },
-    { key: 'Settings', action: () => console.log('Settings selected') },
+  const selectorOptions: (ISelectionOption | { divider: true })[] = [
+    { key: 'Overview', iconName: 'home', action: () => console.log('Overview selected') },
+    { key: 'Components', iconName: 'package', action: () => console.log('Components selected') },
+    { key: 'Services', iconName: 'server', action: () => console.log('Services selected') },
+    { divider: true },
+    { key: 'Database', iconName: 'database', action: () => console.log('Database selected') },
+    { key: 'Settings', iconName: 'settings', action: () => console.log('Settings selected') },
   ];
 
   // Main content tabs
diff --git a/ts_web/elements/dees-appui-base.ts b/ts_web/elements/dees-appui-base.ts
index 7d514f0..ad3a569 100644
--- a/ts_web/elements/dees-appui-base.ts
+++ b/ts_web/elements/dees-appui-base.ts
@@ -65,7 +65,7 @@ export class DeesAppuiBase extends DeesElement {
 
   // Properties for mainselector
   @property({ type: Array })
-  public mainselectorOptions: interfaces.ISelectionOption[] = [];
+  public mainselectorOptions: (interfaces.ISelectionOption | { divider: true })[] = [];
 
   @property({ type: Object })
   public mainselectorSelectedOption?: interfaces.ISelectionOption;
diff --git a/ts_web/elements/dees-appui-mainselector.ts b/ts_web/elements/dees-appui-mainselector.ts
index 3d8d639..258a975 100644
--- a/ts_web/elements/dees-appui-mainselector.ts
+++ b/ts_web/elements/dees-appui-mainselector.ts
@@ -2,6 +2,7 @@ import * as plugins from './00plugins.js';
 import * as interfaces from './interfaces/index.js';
 
 import { DeesContextmenu } from './dees-contextmenu.js';
+import './dees-icon.js';
 
 import {
   DeesElement,
@@ -22,18 +23,18 @@ export class DeesAppuiMainselector extends DeesElement {
   public static demo = () => html`
     <dees-appui-mainselector
       .selectionOptions=${[
-        { key: 'Overview', action: () => console.log('Overview') },
-        { key: 'Components', action: () => console.log('Components') },
-        { key: 'Services', action: () => console.log('Services') },
-        { key: 'Database', action: () => console.log('Database') },
-        { key: 'Settings', action: () => console.log('Settings') },
+        { key: 'Overview', iconName: 'home', action: () => console.log('Overview') },
+        { key: 'Components', iconName: 'package', action: () => console.log('Components') },
+        { key: 'Services', iconName: 'server', action: () => console.log('Services') },
+        { key: 'Database', iconName: 'database', action: () => console.log('Database') },
+        { key: 'Settings', iconName: 'settings', action: () => console.log('Settings') },
       ]}
     ></dees-appui-mainselector>
   `;
 
   // INSTANCE
   @property({ type: Array })
-  public selectionOptions: interfaces.ISelectionOption[] = [
+  public selectionOptions: (interfaces.ISelectionOption | { divider: true })[] = [
     { key: '⚠️ Please set selection options', action: () => console.warn('No selection options configured for mainselector') },
   ];
 
@@ -51,7 +52,7 @@ export class DeesAppuiMainselector extends DeesElement {
         max-width: 300px;
         height: 100%;
         background: ${cssManager.bdTheme('#fafafa', '#000000')};
-        border-right: 1px solid ${cssManager.bdTheme('#e0e0e0', '#222222')};
+        border-right: 1px solid ${cssManager.bdTheme('#e0e0e0', '#202020')};
       }
       .maincontainer {
         position: absolute;
@@ -63,55 +64,79 @@ export class DeesAppuiMainselector extends DeesElement {
 
       .topbar {
         position: absolute;
-        height: 32px;
+        height: 40px;
         width: 100%;
+        display: flex;
+        align-items: center;
+        border-bottom: 1px solid ${cssManager.bdTheme('#e0e0e0', '#202020')};
       }
 
       .topbar .heading {
-        padding-left: 16px;
-        padding-top: 8px;
-        line-height: 24px;
+        padding-left: 12px;
         font-family: 'Geist Sans', sans-serif;
         font-weight: 600;
-        font-size: 14px;
-        color: ${cssManager.bdTheme('#666', '#ccc')};
+        font-size: 12px;
+        color: ${cssManager.bdTheme('#666', '#999')};
+        text-transform: uppercase;
+        letter-spacing: 0.5px;
       }
 
       .selectionOptions {
         position: absolute;
-        top: 32px;
-        padding-top: 8px;
+        top: 40px;
         left: 0px;
-        width: 100%;
+        right: 0px;
+        bottom: 0px;
+        overflow-y: auto;
         font-family: 'Geist Sans', sans-serif;
-        font-size: 14px;
+        font-size: 12px;
+        padding: 4px 0;
       }
 
       .selectionOptions .selectionOption {
         cursor: default;
-        margin-left: 16px;
-        margin-right: 16px;
-        padding-top: 8px;
-        padding-bottom: 8px;
-        border-top: 1px dotted ${cssManager.bdTheme('#e0e0e0', '#303030')};
-        border-left: 0px solid rgba(0, 0, 0, 0);
-        transition: all 0.1s;
+        padding: 8px 12px;
+        margin: 0;
+        transition: background 0.1s;
+        display: flex;
+        align-items: center;
+        gap: 8px;
+        color: ${cssManager.bdTheme('#333', '#ccc')};
+        user-select: none;
       }
 
       .selectionOptions .selectionOption:hover {
-        border-left: 2px solid #26a69a50;
-        padding-left: 8px;
-        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.02)', 'rgba(255, 255, 255, 0.02)')};
+        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.04)', 'rgba(255, 255, 255, 0.08)')};
       }
 
-      .selectionOptions .selectionOption:first-child {
-        border-top: 1px solid rgba(0, 0, 0, 0);
+      .selectionOptions .selectionOption:active {
+        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.08)', 'rgba(255, 255, 255, 0.12)')};
       }
 
       .selectionOptions .selectionOption.selectedOption {
-        border-left: 4px solid #26a69a;
-        padding-left: 10px;
-        background: ${cssManager.bdTheme('rgba(38, 166, 154, 0.05)', 'rgba(38, 166, 154, 0.1)')};
+        background: ${cssManager.bdTheme('rgba(0, 0, 0, 0.08)', 'rgba(255, 255, 255, 0.12)')};
+        color: ${cssManager.bdTheme('#000', '#fff')};
+        font-weight: 500;
+      }
+      
+      .selectionOptions .selectionOption.selectedOption::before {
+        content: '';
+        position: absolute;
+        left: 0;
+        top: 0;
+        bottom: 0;
+        width: 3px;
+        background: ${cssManager.bdTheme('#26a69a', '#26a69a')};
+      }
+      
+      .selectionOption {
+        position: relative;
+      }
+      
+      .selection-divider {
+        height: 1px;
+        background: ${cssManager.bdTheme('#e0e0e0', '#202020')};
+        margin: 4px 0;
       }
     `,
   ];
@@ -121,17 +146,22 @@ export class DeesAppuiMainselector extends DeesElement {
       <style></style>
       <div class="maincontainer">
         <div class="topbar">
-          <div class="heading">Properties</div>
+          <div class="heading">Selector</div>
         </div>
         <div class="selectionOptions">
           ${this.selectionOptions.map((selectionOptionArg) => {
+            if ('divider' in selectionOptionArg && selectionOptionArg.divider) {
+              return html`<div class="selection-divider"></div>`;
+            }
+            
+            const option = selectionOptionArg as interfaces.ISelectionOption;
             return html`
               <div
-                class="selectionOption ${this.selectedOption === selectionOptionArg
+                class="selectionOption ${this.selectedOption === option
                   ? 'selectedOption'
                   : null}"
                 @click="${() => {
-                  this.selectOption(selectionOptionArg);
+                  this.selectOption(option);
                 }}"
                 @contextmenu="${(eventArg: MouseEvent) => {
                   DeesContextmenu.openContextMenuWithOptions(eventArg, [
@@ -143,7 +173,10 @@ export class DeesAppuiMainselector extends DeesElement {
                   ]);
                 }}"
               >
-                ${selectionOptionArg.key}
+                ${option.iconName ? html`
+                  <dees-icon .icon="${`lucide:${option.iconName}`}" style="font-size: 14px; opacity: 0.7;"></dees-icon>
+                ` : ''}
+                <span style="flex: 1;">${option.key}</span>
               </div>
             `;
           })}
@@ -168,7 +201,11 @@ export class DeesAppuiMainselector extends DeesElement {
     await super.firstUpdated(_changedProperties);
     if (this.selectionOptions && this.selectionOptions.length > 0) {
       await this.updateComplete;
-      this.selectOption(this.selectionOptions[0]);
+      // Find first non-divider option
+      const firstOption = this.selectionOptions.find(option => !('divider' in option)) as interfaces.ISelectionOption;
+      if (firstOption) {
+        this.selectOption(firstOption);
+      }
     }
   }
 }
diff --git a/ts_web/elements/dees-appui-tabs.ts b/ts_web/elements/dees-appui-tabs.ts
index 97c92d8..4951da5 100644
--- a/ts_web/elements/dees-appui-tabs.ts
+++ b/ts_web/elements/dees-appui-tabs.ts
@@ -51,7 +51,7 @@ export class DeesAppuiTabs extends DeesElement {
       .tabs-wrapper {
         position: relative;
         background: ${cssManager.bdTheme('#f5f5f5', '#000000')};
-        height: 56px;
+        height: 52px;
       }
 
       .tabsContainer {
diff --git a/ts_web/elements/interfaces/selectionoption.ts b/ts_web/elements/interfaces/selectionoption.ts
index 32f8c6b..3987671 100644
--- a/ts_web/elements/interfaces/selectionoption.ts
+++ b/ts_web/elements/interfaces/selectionoption.ts
@@ -1,4 +1,5 @@
 export interface ISelectionOption {
   key: string;
+  iconName?: string;
   action: () => void;
 }
\ No newline at end of file