I use Choral, Flair, Phasis, Raum and Replika XT all the time.

Love the clean sound and the simple interface but the graphic elements in the back are annoying to me, I would prefer a solid color (problem with Raum is that I'll also have to change the logo, mix and mode color)

Usually when something bugs me out in a plugin i'll just find the .png files from the GUI folder and change it.
For some reason there is no GUI folder with images for these NI VST's.
(only very small stuff used for kontrol probably)

I checked everywhere and was only able to find .db and .meta files, not sure how these works ?
Are these GUI's based on code or anything else I don't know about ?

If someone more knowledgeable knows how this works feel free to chime in.
At this point I'm ok with the clumsy paint splatter (really looks stupid imo) but now I just want to understand how this work.

Cheers