This all is ready for Octavia 5E since few years from me...

[Mr-MIBonk]

Coding and Hardware documentation:
https://www.glaskugelservice.de/codierung/ambientbeleuchtung
https://www.glaskugelservice.de/codierung/mehr-farben-mit-fahrprofil

Picture Mod's is here:
https://github.com/Mr-MIBonk/M.I.B._More-Incredible-Bash/wiki/SKG13---Skoda-MIB2.5-Image-MOD

what is there missing for you for MHI2?

[mrfixpl]

This repo was created when I had MST2 in 2016 Golf MK7. If I recall correctly, to accomplish what's on the screenshot, I had to code MU to facelift model to get the Background menu. And use Passat .gcc file to populate the Background menu with controls.