The name `UIDefault' does not exist in the current contextFixed
^^^  That was with the 1.0.0 version

Now this is the 1.0.1 version ....

Error while compiling: Vanish.cs(218,35): error CS0103: The name `UIDefault' does not exist in the current context

Same here:

 

Ui issue is fixed in 1.0.2
Locked automatically