Use custom highlight colors in tabs

[DuskDarker]

Describe the solution you'd like
Currently when a highlight goes off in a chat that you have been pinged in, the taskbar of that chat flashes red. Why not have it so the taskbar of that certain chat tab flashed the color of the highlight which pinged you.

Additional context
If my explanation didn't make enough sense, here is a screenshot of what I am saying. https://imgur.com/a/KKHfq2X This tab would instead flash the color of your chosen highlight

[fourtf]

This issue does not provide enough useful features. As such there is a likely chance of this never being implemented. I will close this so it doesn't become a stale issue that never gets closed.

[apa420]

#1557