Am Samstag, 25. Juni 2011 schrub Jeremy Morton:


> > you can use masks on selected pixels
> I don't see how that lets you actually set the pixel's alpha value,
> though.  You have to mess around with the mask getting its pixels just
> the right value to make the pixel's alpha value right, which is probably
> harder than using the cut/paste/merge method I mentioned previously.
> What I really want to be able to do is enter a number and set the
> selected pixels' alpha transparency to that number.

You can enter that number in the colour dialog and fill the mask with the 
resulting colour. Since you already selected the pixels the mask will only be 
changed for those.

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