[FR] Hide Cursor/ Change Cursor Opacity, Color, etc. 

Hi! Thanks for a great package. 

I bring a suggestion. For a truly ZEN experience, it would be nice to **make the cursor less distracting** than what some themes do. Many have blu blinking cursor for dark background etc, which is nice for code editing, but for ZEN writing, being able to make the cursor _almost invisible_ would be nice!