For example, if you selected green, GIMP fills the layer with green. Click the layer to fill it with the color you selected. Click one of the colors you see in the Change Foreground Color dialog window and then click "OK" to close that window.Ĭlick the Toolbox window's "Bucket Fill" tool and move to the drawing canvas that contains the new layer. Move to Toolbox window and click the "Foreground" color square at the bottom of the window to open the Change Foreground Color window. Doing this arranges the layer stacking order and makes the new layer appear below your original image layer.Ĭlick the new layer to select it. If you stack them, layers near the bottom of the pile will peek through any transparent areas that reside in layers above them.Ĭlick and drag the new layer you created so that it sits below your original image layer. Layers are like sheets of glass that contain images. Your original image, which is also a layer, appears below it. The new layer you added appears at the top of the list. Each layer appears as a tiny thumbnail image. The Layers window contains a vertical list of layers that exist in your image. Press "Ctrl-L" to open the Layers window if you don't see it. GIMP places the new layer on top of your original image. For instance, if you want to choose a color from the Color to Helpful Color Picker window, click the "From" text box and click one of the colors in the Color to Helpful Color Picker dialog window and click "OK." GIMP makes the color you select transparent.Ĭlick the "Layer" button at the top of the main GIMP window and select "New Layer" to open the New Layer window. ![]() Select the color you'd like to make transparent using one of these methods. This window, which displays colors, allows you to click the color that you would like to make transparent. The background and foreground colors are the ones you see at the bottom of the Toolbox window.Ĭlick the "From" text box and GIMP opens the Color to Alpha Color Picker window. You can click one of these options if you’d like to make one of those colors transparent. Right-click the “From” box and you will see a menu containing the following options: Foreground Color, Background Color, Black and White. There are several ways to get a color into that text box. This text box holds a color that you would like to make transparent. This window has a "From" box below the preview image. The Color to Alpha feature allows you to choose a color in your image and make it transparent. The eraser removes areas from the layer replacing them with the background color or - if the alpha channel is on - with transparency (see here).įinally, when you remove the alpha channel, GIMP replaces the transparency with the background color (in your example the background color was black).Ĭoming to your question, if you want transparent images with full colors, you can simply use brushes with a 100% of opacity (and, if the case, a hardness of 100).Click "Color" from the menu bar and select "Color to Alpha." The Color to Alpha dialog window opens and shows a small preview of your image. If the layer is without alpha channel, the brush's color merge with the background color (or anyhow with the colors of the pixels). On the other hand, you can use on an image (whether with alpha channel or not) brushes with opacity (see here), which create the effect of a color with transparency while drawing. the browsers) are able to use this information while representing the image. ![]() PNG) are able to store the alpha channel information and some applications (e.g. You can find here a simple diagram which illustrates this concept. In GIMP as well in other editors the images can have a specific channel named Alpha channel, so named from a process called alpha compositing, used to create the appearance of partial or full transparency.
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