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changing ONE color - can it be this hard?

Nov 2, 2011, 04:12
Post: #1
changing ONE color - can it be this hard?
Okay, I have a (huge) image consisting of transparent background with sparse line work in just one colour. I want to change that colour. I did select-by-color. Fine, all the line work now masked and flashing. Now what? I tried hue-saturation but fiddling in there didnt seem to change it. I brought up the color window, selected the colour I wanted as FG and tried dragging onto the image - that changed the transparent background to that colour rather than the selection. Tried fill with FG - that changed the background. Now what? There is only one colour plus transparent on this PNG, surely there is an easy way?
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Nov 2, 2011, 07:45
Post: #2
RE: changing ONE color - can it be this hard?
If you have a selection on the line art, then you can use the bucket-fill (Bucketfill) to fill the selection with the foreground or background color (mind: by default the bucket-fill fills similar colors and not the selection: check the approriate option or use shift-click). You also have to click somewhere in the selected area (if you are outside, you have a "No way" sign next to the pointer).

If you line art is on a transparent layer, you can even do without the selection: in the Layers dialog (Ctrl-L if you haven't got it showing yet), check the "Lock alpha channel" checkbox. This make the transparency of all pixels unmodified. Then you can just bucket-fill the whole layer and only the line art will be changed:

Before:

[attachment=724]

After:

[attachment=725]

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Nov 3, 2011, 20:15
Post: #3
RE: changing ONE color - can it be this hard?
Thanks very much. That worked.
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