On the Subject of 15 Mystic Lights
Grid is blue and yellow. Period.
This module consists of two stages, where Stage 1 has 16 lights variant and Stage 2 has 15 lights variant.
The module lights up in the dark (cool, right?).
When a button is pressed, the button will toggle between yellow and blue itself and the adjacent buttons in the four major cardinal directions.
The 15 lights variant has a hole in the board which cannot be interacted with. Clicking on a light adjacent to the hole will toggle the adjacent lights and then move the interacted light to the hole.
To solve the module, turn the lights to one color on both stages.
If colorblind mode is enabled on this module, a 0 represents a blue light while a 1 represents a yellow light. Both texts are colored differently to distinguish between the two colors. The text goes away when the lights are in one color and reappears when the module generates the given variant.