For the download of 40524, the image is 24.2, opening it and saving it gets that down

to 23.2MB.This is more than 10MB smaller than a week ago.

Other things TODO to make it even smaller:

- Hunt down that one GTPlayground instance that is hanging around

- fix class annitations to not allocate 4000 empty dictionaries:

- why is the image smaller after saving it once?

Marcus