Vanilla Fireflies

• 1.21.2(3) support
• Tweaked range of spawning the fireflies

• Added the ability to customize the parameters of fireflies in detail (see readme)
• Bugfixes

Initial Support for Custom Biomes:

• Terralith
• Biomes O' Plenty
• Regions Unexplored
• Terrestria
• William Wythers' Expanded Ecosphere
• Nature's Spirit

Added new A LOT mode with multiplier 2.5x

• Update to 1.21

First version