we have RGB controller to change the players name color,

but where is the PREVIEW of this color?????

In the options window :)

nono!

1 launch the game
2 options
3 change color - nothing changed

but if press "random" - then changed color preview

I'll have to double check this one, It worked on my install so perhaps there is a subtle difference between the linux and windows unity.

retested again. now all ok.

so this happens only on clean install, when no my settings for DMP exists.

to repeat:
1 do clean install ksp
2 run dmpupdater.exe
3 run ksp.exe
4 options
5 change user name color -> nothing changed before first save.

It works correct for me on windows, so I guess the problem lies somewhere else.

Fixed via 9ab0413