Edit your preferences.txt and change the line #3 from
{background_color,{0.0,0.0,0.0}}.
to
{background_color,{0.45,0.45,0.45}}.
This will reset background colour to default.
Or do it manually by Edit|Preferences|User Interface, clicking in Desktop/Geometry Background colour and changing RGB slots to any other colour.
-----------
About transparency of windows background colours, you can set it at Edit|Preferences|User Interface, clicking in Dialog Background and set "A" value (Alpha) to 1, to eliminate the transparency. But at the appended preferences.txt there is no settings determining this.
EDIT:
Solved?!
{background_color,{0.0,0.0,0.0}}.
to
{background_color,{0.45,0.45,0.45}}.
This will reset background colour to default.
Or do it manually by Edit|Preferences|User Interface, clicking in Desktop/Geometry Background colour and changing RGB slots to any other colour.
-----------
About transparency of windows background colours, you can set it at Edit|Preferences|User Interface, clicking in Dialog Background and set "A" value (Alpha) to 1, to eliminate the transparency. But at the appended preferences.txt there is no settings determining this.
EDIT:
Solved?!

__________________________________
www.youtube.com/wings3dchannel
http://www.facebook.com/wings3dchannel
www.youtube.com/wings3dchannel
http://www.facebook.com/wings3dchannel