System Information
iMac 3.2 GHz Quad Core Intel Core i5 (macOS Catalina Version 10.15.1)

Blender Version
Broken: version: 2.80 (sub 60), branch: master, commit date: 2019-05-06 20:33, hash: rBddb71e8c20c2
Worked: (optional)

Short description of error
The 2D Animation window shows a green pencil color in the viewport regardless of color change in the materials.

Exact steps for others to reproduce the error
[Please describe the exact steps needed to reproduce the issue]
[Based on the default startup or an attached .blend file (as simple as possible)]