1) In houdini interface color settings set gamma to some value different from 1 (i set 0.95)
2) Create some objects and network box around it. Then change network box's color.
3) Click on network box's header and you see that it change color to darker and darker.

nvidia
vista x64
9.5.262 x64

I`m agree this.

I can`t understand, why netbox color changed. If i click on another network places, the netbox color is changed to darker.

I don`t use network boxes now, because the color changing is problem for me.

aliax
1) In houdini interface color settings set gamma to some value different from 1 (i set 0.95)
2) Create some objects and network box around it. Then change network box's color.
3) Click on network box's header and you see that it change color to darker and darker.

nvidia
vista x64
9.5.262 x64

Yep … I can confirm this too. If you toggle between minimize/maximize network box, it will change colour too.

Vista64 sp1
Houdini 9.5.230
Nvidia 8600M

Bug logged as #32840. Will be fixed as soon as I can get my hands on it.