Because I'm using my $b for one of the rgb triple, and without the ::, perl will see that and attempt to use it instead of $::b, and fail with Can't use "my $b" in sort comparison. I guess I should have used $::a for balance--and now have.

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In reply to Re^2: ColorRamp1785 by BrowserUk
in thread ColorRamp1785 by BrowserUk

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