PNG decoding fails

[sulkaharo]

Trying to use the code in this example with PNGs created using https://github.com/niegowski/node-pngjs the decoding of the PNGs always fails on Pebble Time:

[22:51:19] gbitmap_png.c:107> PNG decoding failed
[22:51:19] gbitmap_png.c:157> Failed to load PNG

Here's a sample file that causes the issue:

I noticed @mhungerford mention some tool possibly creating broken PNGs in Stack Overflow, perhaps this is it? I'd love to get the JS library fixed to use it. :)