**System Information**
Operating system: Mac OSX Catalina
Graphics card: Radeon Pro 560X 4 GB
**Blender Version**
Broken: Latest 2.80 and 2.82 Alpha
**Short description of error**
My Grease pencil strokes are all displaying with this weird pattern covering them. I can barely see the actual color of the stroke because of this, though the color is present behind the lines.
It's the same problem, whether in Eevee or Cycles. Regardless of preview mode, or X-Ray on or off, or Outlines on or Off or anything else I can find to toggle. My old files that didn't do this are also now displaying this way and doing a Render actually outputs strokes looking like this too.
Am I missing a toggle somewhere or is this a recent bug? Thank you!
{F7922510}
**Exact steps for others to reproduce the error**
Based on the default startup or an attached .blend file (as simple as possible).