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jtippet edited this page Mar 23, 2019 · 2 revisions

ICO446: PngIllegalInputDepth

You've provided a PNG file to the IcoTools suite, but this PNG file appears to be damaged or weird. Double-check that the PNG file is valid. Specifically, the PNG file has an unrecognized number of bits per channel (not to be confused with bits per pixel, which ICO files refer to). This toolchain only supports the following channel depths:

  • 1-bit
  • 2-bit
  • 4-bit
  • 8-bit
  • 16-bit

If you encounter this error on a real PNG file that other tools can display properly, please file a GitHub issue and attach the file, so we can improve the tools.

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