Script Summary: Hides labels ending in an underscore from GMail's default label view. Great for handling lots of labels while preserving screen real estate.
To use:
Append an underscore to any label name that you wish to be hidden by default
For example: Label "Old Project Work" becomes "Old Project Work_"
By default, on GMail page load, these labels will not appear in the Label NavBox.
Clicking on the "Show all labels" link will reveal them, and clicking again will hide them.
Note: On editing labels and/or creating filters, the Show/Hide toggle switch may disappear. For now, refresh the page and everything will be nice and pretty.
