Hello Community and Developers,
There might be an issue with alpha and anti-aliasing in Grease Pencil that are overlapping each other.
As you can see in the graphic, there is this white shimmer around earth that is caused by the brush textures alpha. However this ONLY occurs when in front of another grease pencil stroke. As you can see the atmosphere uses the same brush, but is in front of the world background which doesn’t create this issue.
Also you can see on the day/night edge, there is no anti-aliasing applied. Again this is only a problem when in front of other grease pencil strokes.
I wonder if this is a coding issue or if there needs to be a special box ticked to fix these issues. If the latter is the case, I would consider making it default.