08-14-2019, 06:44 AM
(08-13-2019, 09:38 PM)Human3 Wrote: In other graphic software, i can place copies partially over another copy and do a union, where ever they are the same it just becomes one,
This is not a case of Gimp versus other graphic software. The problem you are experiencing will occur in other graphic software too.
The problem is overlapping semi-transparent areas. These then become darker when overlapped.
Attached is a screenshot of your xcf file. Note that the area between the white areas is not transparent, but semi-transparent white. The Pointer shows this clearly. For the point used the opacity is 22.7%. If the area between the white was fully transparent it would show as black, but the semi-transparency makes it a blotchy grey.