Rename ws to ws' icon next to swayest part?

[tmpm697]

I have this case:

vi waybar/config
  "sway/workspaces": {
    "format": "{icon}",
    "format-icons": {
      "11": "",
      "12": ""
    }
  },

so if it's workspace 11 then show the icon specified in format-icons
if i start open an application in ws 11, then swayest start to rename that workspace completely

what i want here is that swayest rename it to like <icon of ws 11>: <swayest here>

so basically:
before start any app we have workspace:
<ws 11 icon from format-icons>

and then after open apps we have workspace renamed to:
<icon of ws 11>: <swayest here>

how to achived this? @Lyr-7D1h