hi friends
I have a little problem with my windows theme
I now use Premium theme
pls,how do I change the color of my background theme
explorer.exe and cmd is ok,but all applications use gray color
i dont know why and i dont know how to change
here are some pictures,what i mean


where can I change this setting?
who know,pls help me
or here?
but here is many commands
and i now don't want myself to change anything because here is no icon use default settings
Thank you all in advance for any help