|Feature requirements=* {{done|}} [[#F2|F2]] Inspect in Web Developer menu* {{done|}} [[#F8]] Button to switch between inspect and selected modes* {{done|}} [[#F9]] Toolbar buttons to toggle other tools
|Feature non-goals=The initial version does not need to be remotable. The initial version does not support multiple element selection.
|Feature functional spec=[[File:HighlighterFolded.png|Highlighter in Action]]