Slider Customization!

I am really enjoying the near endless customization of the Touch Bar with BTT...and was wondering if you guys had any interest in expanding the customization to the Sliders?

The default sliders work great functionally and aesthetically - but it would be awesome to be able to adjust some other aspects of its look, specifically the slider bar thickness, and colour of the "inactive slider" which is grey by default.

I have a screenshot below of what I mean. If this could be implemented that would be brilliant!

Additional feature I would love: customizing the background color of the knob.