Bar Items

Extensions can add icons to the top bar and the status bar. Clicking one runs one of the extension's commands.

"topbarItems": [
  { "id": "hello", "icon": "sparkles", "command": "toggle", "tooltip": "Hello" }
],
"statusBarItems": [
  { "id": "count", "icon": "bolt", "text": "0", "side": "right", "command": "show-status" }
]

Field	Notes
`id`, `icon`, `command`	Required. `icon` follows the icon format.
`tooltip`	Shown on hover.
`visible`	Default `true`.
`side`	Status bar only, required: `left` or `right`.
`text`	Status bar only: text next to the icon.

Items appear grouped by extension, in manifest order. An item whose command opens a popover anchors the popover to itself; see Popovers.

Changing items at runtime

With panels:write, pages, scripts, and background scripts can change an item they declared:

muxy.statusbar.set({ id: "count", text: "3", icon: "bolt.fill" });
muxy.topbar.hide("hello");
muxy.topbar.show("hello");

set takes id plus any of icon, visible, and, for the status bar, text (null clears it). Changes are not saved; items start from the manifest again after a restart.