Use any Unicode character as a workspace icon

LonM

What
Maybe you want a simple 1 2 3 for your workspace list. Maybe you want to use a CJK character like 旅or 亜 for your "trip around asia workspace". Maybe a ꙮ or a ⛧ symbol on your "demonic summoning workspace". Maybe you hate symbols altogether and want nothing at all!

But oh no! You're not allowed! Those are not approved emoji characters!

This fixes that.

How

Go to vivaldi://inspect
go to "apps"
Find the entry for chrome-extension://mpognobbkildjkofajifpdfhcoklimli/main.html
click "inspect"
Go to "console" and type the following code:

window.VivaldiAppDispatcher.dispatch({
  actionType:'SET_WORKSPACE_EMOJI',
  id:123456,
  emoji:'亜'
})

Change 123456 for the number of the workspace.
Change '亜' for whatever you want to use as a workspace icon.

What number is my workspace?
To update the workspace you need to know the number.
You can get it from the window panel either by inspecting, or use this css mod:

#window-panel .tree-item[data-id*=workspace]:after {
    content: attr(data-id);
    display: inline-block;
    background: white;
    color: black;
    position: absolute;
    left: 100px;
    top: 0px;
}

What characters can I use?
You can put any character you can type, or copy and paste from the web. Just make sure it goes between the two quotes in emoji: 'HERE'. I would suggest using only characters that actually print something visible.

If you want it to be empty, with no character, type emoji:''

You can even type multiple characters, like a whole word. Not sure why you'd want to do that, but you can!