How do I make the foreground color of my awesome wm taskbar's selected window transparent?

Question

I'm using Awesome WM v.3.4.15. I've searched all around and only found the suggestion to add two hex digits to the hex color value of the background color of the selected window in theme.lua but after doing that and reloading it only makes it grey.

Does know what I can do to make the background color of the selected window in the top bar transparent?

Answer 1

Awesome/Lua uses RGBA color space, so indeed to make color transparent you need to add two digits after color.

The parameter you need to change is theme.bg_focus if I understood you correctly, to test it set it to white first "#ffffff" and then change the transparency: "#ffffff00" . If it's not that try theme.titlebar_bg_focus or theme.tasklist_bd_focus

Answer 2

The two hex digits are the strength of the transparency.

00 - full transparency
FF - no transparency

So you have to set your value to #ffffff00 .