From left to right: the blue LED’s anode, the green LED’s anode, the common cathode, the red LED’s anode.
<a href="//commons.wikimedia.org/w/index.php?title=User:Gohstyman&amp;action=edit&amp;redlink=1" class="new" title="User:Gohstyman (page does not exist)">Gohstyman</a>
CC BY 4.0
<span class="int-own-work" lang="en">Own work</span>