To confirm: the colorswirl sketch works -- you get the trippy light show around the screen -- but Adalight does not? This is weird, because the symptoms sound like a communication problem in the Adalight case, but both sketches open the serial port the same. Have you modified that part of the sketch at all, in either colorswirl.pde or Adalight.pde? It's a pretty common thing to have to change it to a different port #.
Both sketches will have a line similar to this:
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port = new Serial(this, Serial.list(), 115200);
(It's called "port" in Adalight, and "myPort" in colorswirl, but otherwise the same thing.)
If you had to modify colorswirl to get it to run (usually this is done by replacing Serial.list() with a COM port name in quotes, e.g. "COM6"), then you'll need to make the same change in Adalight. If colorswirl is working, and Adalight is showing a valid preview window (but not updating the lights), this is the only likely point of failure that comes to mind.