How difficult would it be to remove the lines in-between the boxes and make each box a different color, leaving just the black border intact with 3 different color cube squares?
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<g class="blue">
<polygon points="12,1.0537109 15.961792,2.9403687 12,4.8269043 8.038208,2.9403687"></polygon>
<polygon points="2.6185303,5.5213013 6.874939,3.4943848 10.8366699,5.3808594 6.3914795,7.4976196"></polygon>
<polygon points="12,10.4353638 7.4994507,8.0779419 12,5.9348755 16.5005493,8.0779419"></polygon>
<polygon points="13.1633301,5.3808594 17.125061,3.4943848 21.3814697,5.5213013 17.6085205,7.4976196"></polygon>
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<g class="yellow">
<polygon points="6,19.4956665 2,17.2099609 2,12.3265381 6,14.4217529"></polygon>
<polygon points="11.5,16.173645 7,13.8164062 7,8.9453735 11.5,11.3026733"></polygon>
<polygon points="6,13.2926025 2,11.1972656 2,6.3261719 6,8.4215698"></polygon>
<polygon points="11.5,22.6384888 7,20.0670776 7,14.9455566 11.5,17.3027344"></polygon>
</g>
<g class="green">
<polygon points="17,13.8164062 12.5,16.173645 12.5,11.3027344 17,8.9454346"></polygon>
<polygon points="12.5,17.3027344 17,14.9455566 17,20.0668945 12.5,22.6381836"></polygon>
<polygon points="22,17.2099609 18,19.4955444 18,14.4217529 22,12.3265381"></polygon>
<polygon points="22,11.1972656 18,13.2926025 18,8.4215698 22,6.3261719"></polygon>
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