Describe the bug

• Pixel glow seems strange.

What steps will reproduce the problem?

• With the pixel glow feature...

What is the expected output? What do you see instead?

• I think that the glow of all sides should be constant. But it does not.

Do you have an error log of what happened?

• No lua error occurred.

Screenshots & Additional context

• I am a character class hunter. So I set up a weakauras as a hunter skill.
  In the image above, the red marked are fade and then thickened again.
  However, icons that are not marked in red will look good on all sides.
  I have copied the code to Pastebin.com Please check.

https://pastebin.com/96fgmecp
https://pastebin.com/WtX47MJr

Did you try having WeakAuras as the only enabled addon and everything else (especially something like ElvUI) disabled?

• Yes, I only activated the Blizzard UI and Weakauras.
  Image of the screenshot will appear to have "Clean Icons - Thin" installed,
  but the problem was the same even with "Clean Icons - Thin" removed.
  https://www.wowinterface.com/downloads/info24559-CleanIcons-ThinFanUpdate.html

Which version of WeakAuras are you using?

• I'm using the 2.10.2 version.

Was it working in a previous version? If yes, which was the last good one?

• This problem also existed in previous versions.

We are using a library: https://wow.curseforge.com/projects/libcustomglow to provide the different glows. We did forward that bug report to the author of that library.

The underlying problem is that the coordinate system in WoW is a bit strange, and thus your auras don't usually actually end up on exact pixels. Thus what you are seeing is the glow line falling on a exact pixel but on two pixels.

This can be fixed by setting the uiscale in a way that the wow pixel grid lines up with the real pixel grid, e.g. https://www.reddit.com/r/WowUI/comments/95o7qc/other_how_to_pixel_perfect_ui_xpost_rwow/ contains a bit more information on that issue.

Thus this in essence a duplicate of #236