ADPRO Suggestions
You can do this already. Specify a 32 color screen in the palette control
panel but set a colors used to 16, color 0 index = 0. Then 0 to 15 will be
picked by ADPro but 16 through 31 won't be used. After having ADPro pick
its colors, you c{hoose yours, lock the palette, then tell ADPro to
rerender using all 32 (or not).
pk