The latter is the correct one. All 13 princesses প্রতীকী must only have ONE COLOUR. But আপনি can have different shades (darker/lighter) of the single colour আপনি choose.
If আপনি are still confused, take a look at euny, tiffany88, and kristenfan10109's entries. They are the right one.
Hope this will help you! ^^ Also, welcome to the contest!
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