Many developers use whimsical internal names for specific branches of code to distinguish them from the main "trunk." The Significance of the .zip Format
"Vol" often relates to volume or volatility, while "bells" could refer to notification triggers or a specific algorithmic soundscape used within the software. File: Ai_Shield_Act_2b_volbells.zip ...
It may be the digital handle of the developer who optimized this specific iteration. Many developers use whimsical internal names for specific