- Move code that accesses the color strip to a function that seems
to run on the main thread. Class variables that are now used for
communication between the modal and the main thread update are not
protected, but at worst, the strip's channel will be off.
No operator code accesses the color strip.
- Reverted the color strip to be selected by default, now that it should be safe.
Delete will cancel.
- Canceling will reset the playhead to its original state.