: GIMP: Paint a selection and maintain various levels of opacity I'm trying to recolor a png file using GIMP. The image I want to recolor is a solid color, but the edges are feathered with

@BetL875

In GIMP 2.8 you can simply lock the transparency of a layer while editing. Then, no operations will affect the existing transparency levels of a layer while you edit with any tools or filters.

Just click on the checkbox for that on the Layers Dialog (ctrl + L)

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@Vandalay110

A rather quick way to colorize a monochrome object with variable transparency on a transparent background is using the bucket fill tool with fill FG color fill and fill mode Color. This will replace the object's color by the chosen foreground color leaving transparency levels untouched:

Source:



"Color" bucket fill green:

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