As a followup: optipng ('optipng -strip all') or similar can't necessarily strip this stuff automatically, as stripping this particular data can change the displayed colors. Probably the best measures are

a) work in sRGB to begin with

b) explicitly turn off EXIF,XMP, and IPTC exporting (and check that the result looks visually identical)

@manupix:

> Nope, it's because you save in RGB mode ('truecolor', PNG-24) instead of indexed color mode (PNG-8).

This isn't true, either. I mean, it doesn't help,but..

* current preview PNG: 20k

* preview PNG loaded into GIMP, exported as RGB, with (EXIF, XMP, IPTC, Thumbnail) data turned OFF : 1.5 kb

* As above, but first converted to indexed: 859 bytes.

* After running optipng on the above two: RGB version is 838 bytes, indexed is 839 (????)

Given I get a color profile conversion dialog when I load the original PNG, I'm gonna guess that an ICC profile or similar (inside IPTC or EXIF block) is what is actually consuming all the space.

Save

iLKke (Level 9 Nidan) @ 4/13/2017 06:05

I'm such a sucker for your stuff

Mandrill (Level 9 T-rex) @ 4/10/2017 14:07

The green and purple does it, killer stuff!

OCEANSCENTED (Level 3 Enforcer) @ 4/9/2017 15:38

oh shit well i guess thats that. Thanks fior telling me

Macaroni and Cheese (Level 2 Corporal) @ 4/9/2017 14:05

This is what Mushu looks like on crack.

Manupix (Level 11 Godzilla) @ 4/9/2017 13:47

Nope, it's because you save in RGB mode ('truecolor', PNG-24) instead of indexed color mode (PNG-8).

OCEANSCENTED (Level 3 Enforcer) @ 4/9/2017 13:29

ugh yea Ii know its bc of the duplicate colors which i still havent completely figured out

Manupix (Level 11 Godzilla) @ 4/9/2017 03:58

Previews over 10k ;_;

moondrome (Level 7 Merfolk) @ 4/9/2017 03:51

Those monsters we have inside