There are numerous ways to use the Amino editor. The browser extension contains a pop-up mode, a pop-out mode, and can be opened as a tab within DevTools. We've now added editing capabilities to our web app. Here are a couple of different ways to utilize the editor at aminoeditor.com.
Hover over an existing stylesheet in your library, and click the edit icon:
Alternatively, use the stylesheet menu to open edit mode:
Either of these will launch the editor within the application: