Highlight 7 wót Xen

This is a small tool that helps you highlight certain word on pages. I wish the functionality is stable and focused. At the same time, I keep the look and feel in mind. Wish you love it, below is the basic usage:

- highlight words in popup page
- highlight words in context menu
- highlight words with shortcut

The shortcuts include:
* highlight with auto color: alt/cmd+shift+2
* enable/disable highlight: alt/cmd+shift+e
* clear highlight: alt/cmd+shift+x