Package Manifest icon becomes white on installing any Package with Linear color space & OpenGLCore. On expanding window horizontally buttons residue is being left.

Steps to repro:
1. Open the attached Project.
2. Windows > Package Manager > 2D Sprite > Install.

Actual Result:
Package Manifest icon becomes white on installing any Package with Linear color space & OpenGLCore.

Expected Result:
Package Manifest icon should not be white-out on installing packages.

Reproducible in:
2019.3.0a8, 2019.3.0a3.

Working fine in:
2019.2.0b8, 2019.3.0a2.

Environment:
Windows & Mac.