This is another long-standing bug that I've run into again this morning. Create a new highlighting style (Tools -> Highlighting, right-click -> Create a new style, then expand Font Styling, change font color and Save. Then edit the newly created style and notice that the font color-well is black. This is probably as simple to fix as Ctrl-dragging from the color-well to an outlet in Interface Builder (or establishing a missing binding) and should not take months to fix...