way to influence image file size

[dhduvall]

@HeavyWombat suggested looking at termshot in homeport/dyff#264, and I tried running it with the commands I used there. The output is gorgeous, but quite large: The MacOS screenshot was a 30k PNG, and the termshot one was 134k. That's probably just the resolution difference: termshot gave me a 2051 x 1462 image, while I grabbed a 443 x 308 image with the screenshot. termshot seems more efficient per pixel, but maybe an option to reduce the resolution would be handy.

[HeavyWombat]

Thanks. Absolutely. The image size is something that is bugging me, too. Good idea to optimise on that section.