[Feature Request]: Add ability to customize scrollbar color

[tdtrumble]

Is there an existing issue for this?

• I have searched the existing issues and checked the recent builds/commits

What would your feature do ?

In the UI customization menu, add an option to change scrollbar color

Proposed workflow

1. Go to ....
2. Press ....
3. ...

Additional information

Changing scrollbar width might be helpful too... but color would at least allow it to stand out better from the background. Sometimes I have to hunt for it on certain screens that have a ton of content loaded.