Hi!
1. Start a new picture e.g. 1000 * 200 pixels.
2. Switch on the Color Wheel panel to L-a-b mode. (usually it is RGB at start)
3. Set L=0 a=0 and b=0 (very important!)
4.with the Select tool make a selection e.g. 50*200 pixels.
5. Fill it with the Fill tool.
6. Move your selection 50 pixels to right. (easily and accurate with the arrow buttons.)
7.Set your L to 5. (theoretically you can make a 100 stripe scale, but you want 20)
8. Fill your selection again.
9. Move it 50 pixels again and so on.. till L=100 (what white is)
I hope it helps, otherwise I can record it and send to you per mail.
cheers Leslie
PS the hole problem... I'm working on it.
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