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

feeding this one 10 1* creature foods gave lumps 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*...)

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