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Impossible to invert colours

Nov 6, 2013, 10:29
Post: #1
Impossible to invert colours
Hi, I got a problem, and I can't find any tip to solve it :
I'm currently working on a forum template (phpBB), and I want to invert the colours of the background. I did it easily for some pictures, but I can't invert one of them.

It's a simple gif, I don't know why I can't invert it. When I go to the menu 'colours'->'invert', the option is disabled, even if I tried whith several tools selected.

Does anyone know where the problem is?

PS : please excuse my language, I'm French Smile
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Nov 6, 2013, 10:44
Post: #2
RE: Impossible to invert colours
probably the image is in indexed mode
[Image: dy90FDp.jpg]

if it is, go into the image menu and change the mode to RGB

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Nov 6, 2013, 10:49
Post: #3
RE: Impossible to invert colours
(Nov 6, 2013 10:44)rich2005 Wrote:  probably the image is in indexed mode
[Image: dy90FDp.jpg]

if it is, go into the image menu and change the mode to RGB

That was it ! Many thanks
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