Here's an update of Mr1k3's BackpackPack mod, found here. that's the original mod that starts all, but this is a remix of two mods:

BackPackPack Plus FG and BackpackPackStandard Recontinued

, devs: The_Box, ParallaxError,Buggi and me, I make the ParallaxError backpacks have more capacity with some code make by Buggi, This is only a mod I want to publish bcs I used this modification mod in my personal server, I'm have no plans to update it by myself bcs I'm not good programmer, I'm just gonna be on the line with some important Parallax's mod updates

BackPack slot-capacity:
copper-normal 14 
gold-normal  14
silver-normal 14
tinbronze-normal 16
bismuthbronze-normal 16 
blackbronze-normal 16 
iron-normal 20 
meteoriciron-normal 20 
steel-normal 24 
copper-sturdy 18
gold-sturdy 18 
silver-sturdy 18 
tinbronze-sturdy 24
bismuthbronze-sturdy 24
blackbronze-sturdy 24 
iron-sturdy 30 
meteoriciron-sturdy 32 
steel-sturdy  34 
Temporal anomaly 45