A mod for the open-source voxel game Minetest (https://www.minetest.net/)
Provides in-game information about blocks in the world when you click on them.
Format of information box:
If the node has a description, it is displayed in white. If not, its ID is instead displayed in yellow.
The mod which owns the node definition is displayed in light blue.
The node's level and defined tool types for mining it are displayed. The color of this information is dependent on your currently held tool:
Any flags of interest that apply to this node are displayed, such as whether it is affected by gravity, is flammable, douses fire or lava, and so forth.
See options.lua for ways to some (minimal) ways to customize the display.