My question is, does GIMP have a function which allows you to select (like the eyedropper) the color of a transparent layer? I have a file with two layers. Using Color to Alpha only removes one color. To the right of that bar is an image of a dropper. I'm using Gimp 2. You'll notice by watching the color swatch in the tool options dialog, Left-click the dropper then left-click the color on your image that you’d like to make transparent. For this example set the color to black, RGB (0, 0, 0): Change the color to black. I’ve been researching my eraser issue with no luck for a while. Click the foreground color to change. And while i like open source and dont have photoshop at home, i thought, that i could do that with gimp. Is there a way I can make the transparent background display as something other than the default grid, for example as a simple white background? When removing the background from an image in GIMP, it's best to use an image in which the background is as close to one color as possible. Click File in the top-left corner of the window (Windows) or the screen (Mac), then click Open... in the drop-down menu, select an image to open, and click Open.. Once done, click OK twice, that’s it, anything of your chosen colour will now be transparent. This guide uses GIMP to add transparency using the free-select tool. You can simply add a transparent layer above your image and fill this transparent layer with a color gradient. I lowered the opacity on this square a bit, and realized I like the shade of blue which was now created from lowering the opacity. In GIMP, adding a gradient overlay to an image is not a big deal. Adding a Transparent Background Using GIMP: While making an object's background transparent is easy for solid colors, in most cases, the background tends to have other details that make this troublesome. With the foreground color set, you can now use the Bucket Fill Tool to fill in the selection. First off, launch GIMP … Simple binary transparency is supported in the GIF format; one color from the indexed color palette is marked as the transparent color. One layer has the drawn parts I’m trying to erase, the other is a layer with color so I can see my black drawing against something other than transparency. For my posting thumbnails i wanted to use a transparent gradient (my pictures should fade from opaque to transparent). Open an image in GIMP. Although the background my appear to be one solid color. As I move the Color Picker across, what appears to be a trasparent background. The default grid-style transparent background makes it incredibly difficult to get a sense of what the image will actually look like, when I finally display it over a background. The most commonly used color space, and the default color space in GIMP, is the RGB color space. Maybe your image is saving correctly but how your are viewing is supplying a black background which would be viewable through the alpha layer? From gimp 2.8.22 I've successfully saved an alpha channel in a png image that shows the css background color through the image correctly when used as the src in an img tag in an html file. Follow the steps below to add a gradient overlay in GIMP. Compositions in GIMP always contain some sort of channels to determine how colors will be displayed in the composition. I’m on Mac OS 10.15.7 (Catalina), GIMP 2.10.14. The “Change Foreground Color” dialog allows you to set the foreground color. In actuality it could be made of numerous colors. As you can see in the GIF image below. There are two different approaches used by graphic file formats for supporting transparent image areas: simple binary transparency and alpha transparency. Either save the image as a PNG file else merge the layers then save it … They both have alpha channels. 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