G'day Bod,

In the documentation for stringFT() you'll see:

...stringFT($fgcolor, ...)
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and a little after that:

fgcolor    Color index to draw the string in
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In "GD: Color Control", you'll see how the create such an index.

I tried using a string with a colour name in multiple methods requiring a colour index (stringFT(), rectangle(), fill(), and others) and all gave the warning:

Argument "<colour name>" isn't numeric in subroutine entry at ...
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If I don't use the warnings pragma, I don't see those warnings. Are you using warnings? If so, have you checked in your web server's error log?

[Complete guess: an invalid colour index defaults to black.]

So, instead of the string 'silver', you want the return value of colorAllocate(192,192,192). If you're unfamiliar with that RGB format, take a look at "RGB Colour Code". You'll want to make similar changes for other named colours.

A few of other points regarding your code:

• You have used Indirect Object Syntax in the code you posted. Please follow that link, read the emboldened discouragement at the start of that section; then read on for the reasons to avoid it.
• There are variables used that are (presumably) defined elsewhere (I noted %file and %data). This means that other code might also be using, and possibly modifying, them: there may be side-effects. Aim to pass needed data to subroutines as arguments and keep a tight rein on what's used and where.
• As far as I can tell, $file{'joolzimage', 'file'} is a "Multi-dimensional array emulation". This is ancient code, used in Perl4, before references became available in Perl5. Aim to use "real" multidimensional arrays; e.g. $file{joolzimage}{file}.

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