- fixed item modifiers altering other existing items components
- added CIM, custom item models. Very experimental and format will change
- added kill on contact property to custom particles
- dimension modifiers cloud level can now use a math expression
- fog start and end biome modifiers parameters can now use a math expression
- fixed 3 builtin colormaps having a 0 alpha channel when used on items
- fixed sound emitters cancelling particle emitters
- changed a bit particle types json syntax to be more organized
- particles with physics will now check for collision with nearby solid blocks before spawning
- made custom particles bounding box smaller
- fixed colormap random not being seeded off current block pos
- changed "y_level" default sampler behavior a bit