How to reproduce:
1. Open the attached Metal_API_color_fade.zip project
2. Open Scenes/SampleScene
3. Go to the Hierarchy/Canvas/ select sprite 2
4. Go to the Inspector window/Image Component/Color
5. Press the color picker button and select the red color from the Scene
6. Inspect the picked color

Expected: The picked is same as the original
Actual: The picked color is faded (See the repro.mov attached in the Edit section)

Reproducible with: 2019.2.21f1, 2019.3.2f1, 2020.1.0a24, 2020.2.0a1.26

Not reproducible on Windows or OpenGL

Notes:
- Could not test on earlier versions because of broken Canvas component and fixing them solves the issue
- Tried to reproduce the issue on a new empty project which would mase as provided, but could not reproduce the issue