#Joachim; You are right - your method works in my PSP7.
Step by step - making the new layer:
[Blockierte Grafik: http://i744.photobucket.com/albums/xx81/Thorvald73/Building%20construction/PaintShopPropic6.jpg]
Adjusting the size of brush, to paint a bigger area:
[Blockierte Grafik: http://i744.photobucket.com/albums/xx81/Thorvald73/Building%20construction/PaintShopPropic7.jpg]
And the result of the "white" color:
[Blockierte Grafik: http://i744.photobucket.com/albums/xx81/Thorvald73/Building%20construction/PaintShopPropic8.jpg]
I am sorry, but it doesn't look white, especially not when compared to the small icon of the foreground color. But it can maybe also be because of color settings of my external monitor. If I look directly at the monitor of my laptop, the colors looks different and white looks more white.
Then I was thinking: All right - Der_planner gave me the calculated RGB values corresponding to the CMYK values. Those I wrote down, and then I opened Photoshop 4 (PS4) on my old computer, input CMYK values and wrote down the RGB values that Photoshop were calculating. For the first two colors white and caffelatte, the difference is hardly to not visible, but for the other 3 colors Frost, Sahara and Polargrey, I think there is a slightly visible difference. Since Der_planners calculator is probably newer than my Photoshop 4, I will use the textures based on his values. The pictures below might show it. PSP7 in filename, means RGB values from Der_planner and PS4 in filename means RGB values from Photoshop 4.
[Blockierte Grafik: http://i744.photobucket.com/albums/xx81/Thorvald73/Building%20construction/PaintShopPropic9PS4.jpg]
[Blockierte Grafik: http://i744.photobucket.com/albums/xx81/Thorvald73/Building%20construction/PaintShopPropic10PSP7.jpg]
[Blockierte Grafik: http://i744.photobucket.com/albums/xx81/Thorvald73/Building%20construction/PaintShopPropic11.jpg]