03-20-2018, 07:00 AM
When you create your image what is the mode Image > Mode. Are you working in RGB?
Use Colours > Info > Colourcube Analysis to see how many colours your image has.
A gif can only have 256 colours. If you have more than that the colours will get altered to reduce to 256 when saving as a gif.
If you are using RGB mode, change to Indexed.Image > Mode> Indexed before saving as a gif.
An indexed file has a colour map Windows > Dockable Dialogues > Colourmap
You can alter colours there.
Use the colour picker and click on your magenta background. It will get highlighted in the colour map. Right click it in the colour map and edit to 255,0,255.
Now save as gif.
Use Colours > Info > Colourcube Analysis to see how many colours your image has.
A gif can only have 256 colours. If you have more than that the colours will get altered to reduce to 256 when saving as a gif.
If you are using RGB mode, change to Indexed.Image > Mode> Indexed before saving as a gif.
An indexed file has a colour map Windows > Dockable Dialogues > Colourmap
You can alter colours there.
Use the colour picker and click on your magenta background. It will get highlighted in the colour map. Right click it in the colour map and edit to 255,0,255.
Now save as gif.