Workplace switcher icon brightness?

[TTwrs]

In XFCE a two-finger tap on the touchpad brings up a workspace switcher popup that includes a list of open apps with icons. Minimized app icons are dimmed. How do I make those icons remain full brightness at all times?

I do not want to turn off compositing, in case that is one of the options.

There was something I did to keep the icons on the panel full brightness, but I couldn't get that to work in this case.

Edit: found my notes concerning the panel launcher icons...

Putting this in ~/.config/gtk-3.0/gtk.css will keep the panel launcher icons full brightness when apps are minimized.

* { -XfceTasklist-minimized-icon-lucency: 100; }

So, what is the equivalent for the XFCE two-finger tap on the touchpad that brings up the workspace switcher popup which includes the list of open apps with icons? What is the 'name' of the popup tasklist switcher?

[CharlesV]

Since you did not post your QSI, are you running MX21 or MX 23 ?

And too my knowledge, not all trackpads even support two finger tapping - Posting your QSI might help to gt this question answered.