I love the script when used on a lush HD vid, however, sometimes I want to use one of the other two view sizes especially if Cinema Size is too much for a low quality vid.
Also, since I can't control the expansion anymore the button is sitting there just wasting space!
My suggestion is to give that little button back some functionality! Essentially make it the same as before (regular and Expanded view) but add in Cinema View as third option.
This way, no extra crap has to be added to the Browser's window and it can remain a universal script. For the recored, I'm using Chrome Dev channel. You're extension works fine here, I just wish it offered more control!