![]() The currently active foreground and background colors are displayed in two color swatches at the bottom of the Toolbox panel on the left side of the GIMP interface. When the ability to actually delete pixels and leave transparent areas behind was added, the original system stayed in place.Īs soon as you add an alpha channel or begin working on a second layer in your image, the Eraser stops ‘painting’ with the background color and actually removes pixels from your image to create transparent areas, which makes a lot more sense to me from a conceptual standpoint.įor many digital artists, the foreground/background system really just allows you to have two colors ready to be used at one time rather than being used by the Paintbrush/Eraser tool pairing, but palettes and other color-picking methods are usually a much better choice for storing and reusing multiple color values in a project. ![]() The background color used by the Eraser tool could be matched to the image’s background color, and painting that over any other pixels in your image would make it seem like they had been erased. ![]() In the early days of computer graphics, that was enough for most people who wanted to create the illusion of “erasing” pixels using only a single layer. When working with a single-layer image with no alpha channel for transparency, the foreground color is used by the Paintbrush tool, and the background color is used by the Eraser tool.
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