To learn a better way to type my fonts (characters with vowel markers), click here: [link]
To type the symbol for "degree", just type Alt + 560.
Alfa-Larawan is inspired by page 15 of the book "Another Look at Tagalog" by Norlito Ison Cervo. Alfa-Larawan is based on his unproven theory that the basic Baybayin characters were patterned on the human jaw and mouth movements. To view that page, click [link]
I honestly don't know how he came up with this Baybayin origin theory.