change theme menu command

app/src/electron.js

@@ -91,6 +91,7 @@ function buildMenu() {
         { role: 'zoomout' },
         { type: 'separator' },
         { role: 'togglefullscreen' },
+        commandItem('theme.changeTheme'),
       ],
     },
     {

packages/web/src/commands/runCommand.ts

@@ -1,4 +1,4 @@
-import { getCommands } from '../stores';
+import { getCommands, visibleCommandPalette } from '../stores';
 import { GlobalCommand } from './registerCommand';
 
 export default function runCommand(id) {
@@ -11,6 +11,8 @@ export default function runCommand(id) {
     } else {
       if (command.onClick) {
         command.onClick();
+      } else if (command.getSubCommands) {
+        visibleCommandPalette.set(command);
       }
     }
   }

packages/web/src/commands/stdCommands.ts

@@ -35,6 +35,7 @@ registerCommand({
   id: 'theme.changeTheme',
   category: 'Theme',
   name: 'Change',
+  toolbarName: 'Change theme',
   getSubCommands: () => get(extensions).themes.map(themeCommand),
 });