Widgets (messages text) bug on some core

Description

I think retroarch changed something on widgets - which are messages text - and some cores have not been updated :(
I've post a request here but they write me to post here, and that's a RA issue and not a CORE issue ?!

https://github.com/libretro/px68k-libretro/issues/109

Expected behavior

On some core all is fine like here :

On some other the background is missing, or font is yellow, or text is dark and impossible to read like on x68000 :(

Actual behavior

• The login message is always bad write in yellow :

• This message is fine in Colecovision like i show before, and bad on some other like here :

But other messages like this on SNES are fine :

On x68000 the widget background is fine but the font in black and impossible to read :(

Steps to reproduce the bug

1. Launch a game on these systems
2. Try to make a Savestate or a Screenshot so see a Widget.

Bisect Results

I don't know, but for exemple with the old Vice 3.3 there is no problem.

Version/Commit

• RetroArch: 1.8.2

Environment information

• OS: Linux with Batocera

Start by reproducing the widget behavior in RetroArch 1.8.2 using savestate or screenshot actions on the x68000, Colecovision, and SNES systems listed in the report. Compare the affected cores with the working examples and the older Vice 3.3 behavior; done means widget backgrounds and text remain readable and consistently styled.