Shortcuts

Open SpecMiru#

Shortcut	Action
Alt+Shift+S	Open SpecMiru. If the panel is already open, start inspecting.

Change it at chrome://extensions/shortcuts (“Open SpecMiru”). Alt+Shift+I is not used because it is Chrome's own “Report an issue” shortcut on Windows.

While inspecting#

Key	Action
Enter	Pin the outlined element
Tab	Move to the next element
Esc	Stop inspecting

Measure#

Key	Action
Click	Set the reference element
Alt + hover	Show the gap to another element
Alt + click	Record that gap
Esc	Stop measuring

Capture (free region)#

Key	Action
Drag	Frame the region
Shift	Keep proportions
Arrows	Move by 1 px
Enter	Capture
Esc	Cancel

Panel#

In Overlay mode, the resize handle accepts the arrow keys. Tabs, menus and dialogs follow the usual keyboard patterns (Enter/Space, arrows, Home/End, Esc).