Puzzle 15

Puzzle 15 is one of the mysteries in Islands of Insight.
==Hints==
*The image is taken near a fast travel point.
*The temple may be discerned on the map.
==Solution==
Ascend to the temple atop which stands the "Heads in the Clouds" pillar(s). Inside, locate two lions with two adjacent boxes. Resolve the left box, ensuring all dark regions possess an area of 4, and all light regions an area of 2.