The toolbar to which this will be added
This is probably one that we would want to add to the toolbar
We need a button design with two states. Should fit it with the other button we have:
https://git.wikimedia.org/blob/mediawiki%2Fextensions%2FCodeEditor/9603214b8b8bce6d575a68c8c023834542c82720/images%2Fcode-selected.png
https://git.wikimedia.org/blob/mediawiki%2Fextensions%2FCodeEditor/9603214b8b8bce6d575a68c8c023834542c82720/images%2Fcode.png
Version: master
Severity: normal
Attached: