changelog:
- using a non-primary button (middle or right) in popup commands now opens a new tab in the background while keeping the popup open (#383) Currently only Popup Search Engines is supported, other commands will treat these buttons as a normal click
- removed the "Focus new tab" option for Popup Search Engines command
- added the possibility to define multiple zoom levels for the zoom in and zoom out command (#400)
- added a link to the matching algorithm description which points to a more detailed explanation/comparison
- changed command bar item symbols and info in order to better indicate that a command has additional settings (#453)
- fixed scroll commands not working for pages in quirks mode (#508)
- gesture similarity alert in the options page may now also be shown when opening an existing gesture