Currently squid differs from some other (less capable) digital paper tools because, on ChromeOS it does not default to full screen. Bamboo Paper is an example where fullscreen works as expected.

This is a problem for ChromeOS tablets because:
1. The "fullscreen" button on a ChromeOS keyboard cannot be used on a tablet with the keyboard disconnected.
2. There is no gesture in ChromeOS to force Squid to full screen from within tablet mode
3. Pen becomes unusable because palm rejection in the system button bar at the bottom of a ChromsOS tablet cannot be implemented with an app (since it is owned by the OS).

The upshot is that Squid cannot be used without much pain (rummage in cupboard to find keyboard, reattach keyboard, press fullscreen button, deattach keyboard, enjoy fullscreen for a little bit until it gets forgotten and we have to reattach the keyboard again).

Squid is a great tool but this pain sucks all the joy out of using the tool.