[Gimp-user] Brush sizes in GIMP

[<stricklyprsltd look ca>]

I can no longer change brush sizes in Gimp 2.8

I downloaded Gimp 2.10 and still cannot change brush sizes. 

2.8 the tool box would show up with all the settings for the brushes which
were in white. But it changed to grey and would not allow changes.

2.10 does the same thing. Also the background and icons are all greyish. Not
like before in 2.8 where it was white and the icons had colour??

 

Any ideas??

 

Bill