I have an PNG image like this with a transparent background:
How can I change the image color to white, and keep the transparent background in GIMP?
The desired result is a white silhouette on a transparent background.
There are several quick ways to reduce an image to transparent white tones. From the Colors menu select one of these
Any of these procedures will lead to the following transparent white image:
Note that due to the transparency a colored background will shine through your image.