On Monday 25 April 2005 01:17, Andrew Robinson wrote:

I'm trying to build menus for DVDs which are sensitive to the number of colors in the pgn files. I've got two related (I think) questions concerning coloring in The Gimp.

I want to create a layer with text on it that will be used as labels for buttons. I want the text to be in a single color and the layer to have a transparent background. That should total to two colors in the layer. When I create the layer and then save it as a png file, it winds up with about 10 colors. I assume this is because of antialiasing, but I'm not experienced enough with The Gimp to know. How would I create the text in a single color?

Second, I want to change the color of text on the first layer to generate a png file that will be used to indicate highlighted buttons. How do I change all the non-transparent pixels in a layer from one color to another? I've tried painting and bucket-fill of each character, but that is tedious and generates yet more colors per layer, I suppose because of feathering. There seems like there should be a simpler way.

Thanks!

You have to work with an indexed image to have absolute control over color.
COnvert your image do indexed (Image->mode->indexed), pick two colors, and no dithering.

Aftwerwards, open the Color Map dialog (Dialogs->colormap), within which you can easily replace a color on the whole image at once.

If you prefer otherwise, work on RGB mode, and use teh "Select by color" tool, changing the threshold, to replace a color on the image - and before you save, do the indexing of the image.

Regards, JS
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Andrew Robinson