hi koto,
TheDave is right about not changing the image. And about applying a material/texture to change the text from white to black.
The way that I do it for Blender Multitexture Materials, is add the font (white text with black background) as a texture.
Go back to the Material buttons. Map Input: UV. Map To: Col button. Neg button (this inverts the black and white). And I like to use the Texture Blending mode Add instead of mix. (For GLSL I use mix.)
Material Tab: enable the Shadeless button. And because I’m using Texture Blending mode Add, I adjust the white/black contrast with the Col slider. I like to use a 0.4 value for the red, green and blue. (For GLSL I use 1.0 for red, green and blue.)
When you start the game engine it will change to black text on a white background.
Clark
Attachments
font_black_text.blend (284 KB)