switch to white on black without the desktop image inverting (like in ubuntu)

[marvin*1*2]

hi
when pressing ctrl-option-cmd-8 to switch to white on black (in a low-light environment), everything goes into inverse color mode, including the background/desktop picture... which sucks if you have a darkish pic which is then superbright... in ubuntu, switching to inverse colors leaves the background pic alone, any ideas how to tweak OSX to do the same?
thanks

 

[KingYaba]

Open up Photoshop and edit your wallpaper?

 

[marvin*1*2]

sorry i was not clear enough on this... i want the desktop (background pic) to stay in its original colors either way (in white on black and in black on white mode) so that if i have a darkish wallpaper, it doesn't get superbright when i inverse colors. ok?

 

[Denarius]

sorry i was not clear enough on this... i want the desktop (background pic) to stay in its original colors either way (in white on black and in black on white mode) so that if i have a darkish wallpaper, it doesn't get superbright when i inverse colors. ok?

I think the point that the previous response was making was that if you do an invert in photoshop and set that as your wallpaper, then inverting with cmd+alt+ctrl+8 will give you the background that you expect. You can also adjust the brightness of the image while you're at it. If you don't have photoshop, gimp is a good open-source alternative.

For the sake of curiosity, I've just tried that with my own background image and the image displays identically to the original following a Photoshop invert and the desktop colour invert command.