LXQt change Qt Style colors

Support
1

Hello,

how can I change the colors of the LXQt Widget Style “Windows”
I have this:
i.imgur.com/zghuo38.png

and I want this:
i.imgur.com/MLEOi7a.png

I’ve tested it with the current Manjaro LXQt iso and there it is the dark gray
but unfortunately not in my version and I don’t know how to change this

2

Probably you can do it in LXQt Theme

3

The LXQt Theme only affects the panel

4