What am I doing wrong here?

Firstly, you are failing to meet the fairly rudimentary requirements of posting at Perlmonks.

  1. Failing to use the simple formating markup required by the site. (Hint:<pre></pre> tags are verbotten!)
  2. Why post your code offsite rather than here? What sense will your post and any answers have when your offsite code is no longer available?

The probable cause of your problem is that you are trying to use palletised colors (8-bit) on a truecolor (24-bit) image.

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
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In reply to Re: Creating PNG's using GD from an existing PNG...issues with colors by BrowserUk
in thread Creating PNG's using GD from an existing PNG...issues with colors by elsif

Title:
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