The app retains state for a long time. I found the 'sinewaves' key under Local Storage (OSX Chrome) and managed to reset it there but I don't see how to do that through the main UI. Cmd/option/ctrl/etc-click on the entries in lower-left panel doesn't help, and the backspace key exits the page entirely. Assuming I'm missing something obvious again...
The app retains state for a long time. I found the 'sinewaves' key under Local Storage (OSX Chrome) and managed to reset it there but I don't see how to do that through the main UI. Cmd/option/ctrl/etc-click on the entries in lower-left panel doesn't help, and the backspace key exits the page entirely. Assuming I'm missing something obvious again...