Sorry you may have more knowledge about this "random hats" thingy, but all we get is submit hats to The Green Ale. No other info.
If you can provide more info please tell us.
As of no palate provided, who knows?   
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As long as it looks good you don't need the palette. The palette is just there as a guideline on what types of colors to use, no bright colors etc just dull looking ones