I know this is a bit late, but puzzling SE's birthday is today or yesterday or really near right now, so I wrote out a birthday message for the site. 

However, I accidentally spilled my unicorn frappuccino all over my computer screen, and the magicalness *(Disclaimer: This is probably not a word.)* of the unicorn bled into my screen, scrambling up all of my messages in meaningless letters and blobs of color. 

Also, the unicorny *(this one isn't either)* powers of the unicorn frappuccino seemed to have boggled my brain a bit, making me forget what I was writing originally. Can you help me retrieve the message?

> https://docs.google.com/spreadsheets/d/1e8Ha5YOYnLkhGLolxQN4fZSN14OgFaj--0ZhfgdxLPE/edit?usp=sharing

I've put the puzzle up as link form, for I do believe that the StackExchange uploading process does slightly distort the colors, so for maximum accuracy, I've decided to just provide a link to a spreadsheet.

Also, not sure what tags to add to this puzzle.