Changing the MouseAppearance on the entire notebook front end

Question

Using MouseAppearance one can change the cursor image when passing over an expression.

Is it possible to change the cursor image for the entire notebook front end (not just one expression within it)?

Answer 1

One can change the default cursor for all Output by setting up $Post with something like the following.

mouseApp[expr_] := 
      MouseAppearance[expr, Graphics[{Red, Disk[]}, ImageSize -> 10]]

$Post = mouseApp;

I'm not sure this answers your question though since it doesn't change the appearance of the mouse cursor for Input.