┌─ png.xx ── Generates png.5e86c4ab.bin ────────────────────────
│ From https://garethrees.org/2007/11/14/pngcrush/
│ REF: http://www.libpng.org/pub/png/spec/1.2/PNG-Structure.html
└───────────────────────────────────────────────────────────────

-- 8 byte PNG Magic
89 "PNG" 0d0a 1a0a

-- IHDR
  0000 000d -- IHDR Length
  "IHDR"    -- IHDR Marker
  0000 0001 ─┐ 
  0000 0001  │
  0100 0000  │ IHDR Chunk Data (13 bytes)
  0037 6ef9  │
  24        ─┘

-- IDAT
  0000 0010 -- IDAT Length
  "IDAT"    -- IDAT Marker (has a 16 byte header)
  78        -- The header byte 78 meaning "deflate compression with a 32 KiB window".
  9c        -- Informational byte 9c meaning "the default compression algorithm was used" (plus a checksum).

  6260 0100 ─┐
  0000 ffff  │ 10 bytes of compressed data
  0300      ─┘

  0006 0005 -- 4-byte Adler32 checksum
  57bf abd4 -- CRC32 of IDAT

-- IEND
  0000 0000 -- IEND Length
  "IEND"    -- IEND Marker
  ae42 6082 -- CRC32 of IEND