note: a piece of pumpkin candy filled the lump's growth bar by about 3%

feeding lumps 10 1* creature foods gave them an average of 5% growth per food.
6.72% for 2* creature foods
8.28% for 3* creature foods
10% for 4* creature foods
2.5% for sparkling water
6.64% for pumpkin pies
4.14% for parfaits (parfaits still less growth than pumpkin pie? i guess it's 3* vs 5*...)
5.84% for mixed nuts. this would mean that a cat has 3.75 times the growth time of a lump! yay!

...i think the bar may be 128 pixels long instead of 134 actually. changed the values to go with that!!

also, it looks like charms trigger before mirrors activate puzzle boxes. a charm gives your pet some affinity at the end of the day and mirrors+puzzle boxes can increase the affinity the charm just gave. neat.