large screenshots (2MB+)

[thufir]

How do I control screenshot compression?


thufir at dur:~/Pictures$ 
thufir at dur:~/Pictures$ ls -hal
total 5.2M
drwxr-xr-x   3 thufir thufir  60K Nov 16 08:32 .
drwx--x---+ 72 thufir thufir  20K Nov 16 07:47 ..
drwxrwxr-x   2 thufir thufir 4.0K Nov 14 05:03 .comments
-rw-rw-r--   1 thufir thufir 145K Nov 14 05:44 Screenshot from 2017-11-14 
05-44-25.png
-rw-rw-r--   1 thufir thufir 2.5M Nov 16 08:29 Screenshot from 2017-11-16 
08-29-57.png
-rw-rw-r--   1 thufir thufir 2.5M Nov 16 08:32 Screenshot from 2017-11-16 
08-32-33.png
thufir at dur:~/Pictures$ 



I changed some sort of setting somewhere, because now screenshot file 
size is through the roof.  the "old" screenshots are ~145k, more recently 
>2M which is a huge jump.



thanks,

Thufir