+ Bugs
  + Unknown
  + There is a (new?) dropdown for the “enabled” status of a block of code. When I select “enable” on the Javascript type I get a green notification that “code is DISABLED”. (Alex)
+ TO DO
  + Prevent enter in code name on tab
  + Add support for Gutenberg editor
    See: https://torquemag.io/2019/05/create-gutenberg-block/
+ Known issues
  + When previewer is disabled Firefox show a ns_error_failure if setting font on a canvas context
    See: https://bugzilla.mozilla.org/show_bug.cgi?id=941146
    This message can be safely ignored