Please excuse the simplicity of my question as I'm new to image editing:
I have an image with some text and I would like to change the color of that text. I don't have the original file; I only have this image file. The text is currently white, and I'd like to change it to red or black, while keeping the + symbol yellow. I've posted a screenshot of my view in GIMP as well as the actual image file.
I somehow thought that I would be able to add a layer of red or black on top and the text would magically fill in and change colors, but that didn't work.
I did take a look at this question: How can I change the color of images in GIMP?
I'm went to colors --> hue-saturation but I could only change the color of the + symbol; "mathematics" stayed white. I tried changing other colors settings, but couldn't get the white in my image to go red or black. The darkest I could get was dark grey, but that's because I decreased the lightness. I could not get it to go solid red or solid black.
I'd appreciate and suggestions and/or solutions. Thank you!