Yeah. I'm also curious if there is a shortcut. If I would wan't do do that. I would change the hue of selected area on each frame. Let's assume one operation like that would last for 5 seconds. 5x80/60. That gives 6,66 minutes :)
The structure and anti-aliasing of the logo is solid. Asking out of curiosity, how did you apply the gradual gradation of colour to the sprite?
Edit: I forgot the rules about level 1 members being unable to directly comment/reply. You don't have to give an answer but if you'd like, feel free to DM it to me.
I made several individual version of the art, each a different color that I liked. Then I exported them and created a fade between them in photoshop. If you want a video tutorial on it I could make one.