GS: fix light theme invisible text

[Jupi007]

Before:

After:

Closes #3887, closes #3881

[Feichtmeier]

💯 Good job!

(( Offtopic: would still safe you a bunch of time, if this could all be upstreamed one day ))
(( Offtopic: the new font looks very nice ))

[Feichtmeier]

I think you need to separate the closes issuexyz by new lines and add a closes in front of each issue tag (I could be wrong)

[Muqtxdir]

thanks, better now

[Jupi007]

I think you need to separate the closes issuexyz by new lines and add a closes in front of each issue tag (I could be wrong)

Thanks you was right, I didn't noticed that the second linked issue didn't worked :)

(( Offtopic: would still safe you a bunch of time, if this could all be upstreamed one day ))

I agree. I will try to ask upstream, if I can find the time to work on (not for now so 😅).
((I think @Muqtxdir reported that they already think about provide a real light theme))