Use the Eraser as a Color Replacement Tool - MS Paint Trick

Use the Eraser as a Color Replacement Tool

Say you have an uneven patch of yellow color on an image that you now want to replace with blue. You could use the Fill bucket command to fill that patch with Blue but since the shape is not uniform, lets use the Eraser tool to only replace the color that we want.



First use the colour picker tool to pick the (foreground) colour that you want to replace (in this case, left-click anywhere that has yellow). Now choose the replacement (background) colour by right-clicking in the color palette. Next, select the eraser tool and wave it across the image while you hold the right-click button.