Address initial feedback:
- Use checkboxes instead of radio buttons
- Hide snapping distance control from UI
- Tweak snapping line color - use selected strip color, 50% transparency. Similar to other editors
- Draw 2px thick line, since strip outline is also 2px thick
Reviewed By: HooglyBoogly
Differential Revision: https://developer.blender.org/D11759
519c12da41