Api chat box background color and font color

Hello im new Pro user and just getting into API what started bothering me is how hard it is to see what it says on chat box

Is it possible to change the background and font's color ?

It depends on what is creating that chat output. Is that the output from a character sheet roll button or roll template? An API command? Or something else?

It is an Api command !concentration from Concentration mod.

Gotcha. It looks like the script didn't specify a text color and so in dark mode it used the default dark mode color. The script could be updated to specify a color to fix the issue. I'd recommend contacting the script author.

If that's the Robin Kuiper script, they have long, long vanished.