**System Information**
Operating system: Windows-10-10.0.18362-SP0 64 Bits
Graphics card: GeForce RTX 2060/PCIe/SSE2 NVIDIA Corporation 4.5.0 NVIDIA 457.30
**Blender Version**
Broken: version: 2.93.0 Alpha
**Short description of error**
{F9883670, size=full}
Additional notes on the Annotation Tool UI in the VSE:
- Why is it displayed both as a tool in Tool tab and as settings View tab?
- Why is the pop-over only exposed in the 3d tool header/tool sidebar settings and not in the other editor tool header/tool sidebar settings?
- Why isn't Onion Skin exposed in the Tool tab but only in the Annotation View tab?
- Why isn't Onion Skinning a submenu of Annotation in Sequencer Preview, but is in the 3D View sidebar?
- In the Tool sidebar, why is it necessary, under "Annotate", to have the label "Annotation"?
- Why does it need to be enabled in all other editors but not in the 3d View?