This mod activates some of the debug renderers that are present in the vanilla game code but unavailable without further modification.

Available Debug Renderers

• Pathfinding
• Water levels
• Chunk borders
• Heightmap
• Block collision boxes
• Block updates
• Structure boundaries
• Skylight
• Block outlines
• Chunk loading
• Bee AI
• Gametest (unknown functionality)
• Sculk/warden
• Raid centers
• Entity AI/goal selector
• Entity Brain

This mod also adds some custom renderers that I thought would be useful:

• Mob spawning attempts

Debug renderers can be toggled with the /dr <renderer> command, and listed by running /dr without arguments.