**System Information**
Windows 10 64 Bits.
Graphics card GeForce GTX 1080 Ti.
**Blender Version**
Broken: version: 2.90 hash: a1c2441390e6
**Short description of error**
When you add a driver to bone's 'restrict visibility' there is no purple color indication that it's driven in the outliner.
{F8521945 size = full}
**Exact steps for others to reproduce the error**
* Open the demo file.
* Scrub through the timeline to see the custom property changing its value, and the visibility changing because there is a driver on it.
* The driven visiblity Icon in the outliner has no purple color for indicating that it has a driver.
{F8521951}