Fans use these assets to create "Asset Packs" or custom animations (fan-made episodes) that maintain the show's original style.
The "source files" for Battle for BFB episodes 17 through 28 refer to the original project files (primarily .fla and Adobe Animate formats) used by the production team (Jacknjellify) to animate, composite, and audio-mix the final episodes released on YouTube. bfb 17-28 source files
Scale-independent shapes of all characters and backgrounds. Fans use these assets to create "Asset Packs"