Just in case the gif was a bit too fast for you to see the interaction, here are some stills of the process:
Step one: a prototype - maker (whether that's a Mozilla employee or a Mozillian) puts the e-VALUE-ator * widget on to their prototoype. * = working title, probably won't stick :)
Step 2: a prototype user will hover over the widget, it spins to get their attention and then turns into a clickable button:
Step 3: after click the button, this screen will appear - asking the user to choose which Mozilla design values this prototype embodies.
Step 4: After a user submits the values, a confirmation screen will appear, showing the user a graph-i-fied version of the widget, reflected their feedback. Additionally a user can then look at the birds eye view feedback on the prototype from many contributors etc. or, if they are motivated, give long form feedback in a comment field.