Can't install 'Devstyle' on STM32Cubeide V1.18.1!

[DK.7]

My 'OS' is Debian12.

And as you can see from the question above, I'm having trouble installing the theme for CubeIDE v1.18.1

See attached screen.

[AScha.3]

I run MxLinux (up to date).

Seems there is a problem in access to "marketplace" in 1.18.1 ;

can you open marketplace and search/select ...anything ?

[DK.7]

No, it takes a long time to load and eventually does not connect to the marketplace!
Same behavior in CubeIDE v1.15.1.

PS, I need to customize CubeIDE appearance and fonts, because by default it is not possible to work at all! Maybe someone knows how to configure CubeIDE manually without DevStyle?

[AScha.3]

...this is how my IDE is looking:

Using any new plugins from "market" can be dangerous - i had to delete and install IDE new, 

after testing some plugins - changes could not be reversed !

So more save: use the settings, that are already here: menu -> window -> preferences

- first:

- then: many ...editor, debug etc.

- and the syntax colors you like:

- and what it shows in menu and tollbars :

/for every perspective ! / edit / debug / Mx

menu-> window -> perspective -> customize...

btw   - what i like :  mark occ. of sel. text 

- and breakpoints better visible:

-> here : marked text "fresult" and a breakpoint