Change Brightness of BTT icon in touchbar

Just getting started with this, so sorry it this is a rookie question, but I did try and figure out how to do this on my own, and couldn't figure it out.

I have the setting to show the BTT icon on the left while using BTT so I can toggle from BTT to application specific touchbar interface. But the BTT icon brightness is almost 2x the rest of the icons in my touchbar, looks very out of place.

How can I edit the brightness of just the BTT icon in the touchbar, and even better is it possible for me to change that icon to being something else?