If you want to change the color of a layer in Gimp, you can use the Color Picker tool. To open it, click on the toolbox icon at the top left of the screen and select Color Picker from the menu that appears. To change the color of a layer, first select it by clicking on its thumbnail in the Layers panel. Then, click on the color swatch next to its name in the Layers panel. You can also use keyboard shortcuts to change a layer’s color quickly. To change a layer’s color using keyboard shortcuts, first select it by clicking on its thumbnail in the Layers panel. Then, press Ctrl+Shift+C (Windows) or Command+Shift+C (Mac) to open the Color Picker tool. Finally, click on the color swatch next to its name in the Layers panel. ..