Hello Ideath, welcome to the forums.
When you want to colour a single letter, stay in the main screen, and click on the cursor button (the a/b button in Xara3d6), then move the cursor to the right of the character you want to change, then hold down shift and click on the left arrow key. This will highlight that character only, and if you then choose a colour from the colour dialogue, or indeed almost any attribute dialogue, it will affect only that highlighted character.
Mike
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