Set at 90, which means a maximum arc of 4 degrees. Even at around 20 segements though, it's still barely noticable.
This is more to prevent people crashing it by setting a studpidly high number.

…ence was changed in the keysequence control by a binding.

This commit fixes the issues with a region not being removed from the layer editor when a preset is applied on the particle layer and also the issue with the checkbox not being set correctly initially on the radial layer control.
For future reference for anyone reading this: When needing custom code to run when a dependency property's value is updated, this should always be done in a dedicated changed handler, NOT the property setter method. This is because changes to bindings do not actually set the property and thus would not invoke custom code on the property setter.

Now that there is no dropdown saying what type an evaluatable is, the labels need to make it clear instead.