CatPacks #

Installation #

The CatPacks folder location is as follows:

• on Windows: %appdata%\PrismLauncher\catpacks
• on Mac: ~/Library/Application Support/PrismLauncher/catpacks
• on Linux: ~/.local/share/PrismLauncher/catpacks
• on Flatpak: ~/.var/app/org.prismlauncher.PrismLauncher/data/PrismLauncher/catpacks

After you move the CatPack to the mentioned folder restart Prism Launcher, then open the global settings.
In the Launcher section, click the User Interface tab, and under Cat, choose the newly added CatPack.
Click the Close button, and enjoy your CatPack.

CatPack Types #

1. Simple CatPack #

The most basic CatPack is a simple image(that's all).

2. Advanced CatPack #

Is a folder that contains a catpack.json file and some images.

For example, the structure of a CatPack is as follows:

└── test_catpack
    ├── catpack.json
    ├── christmas.png
    ├── oneDay.png
    ├── maxwell.png
    ├── newyear.png
    └── newyear2.png

The catpack.json looks as follows:

{
  "name": "My Cute Cat",
  "default": "maxwell.png",
  "variants": [
    {
      "startTime": {
        "day": 12,
        "month": 4
      },
      "endTime": {
        "day": 12,
        "month": 4
      },
      "path": "oneDay.png"
    },
    {
      "startTime": {
        "day": 20,
        "month": 12
      },
      "endTime": {
        "day": 28,
        "month": 12
      },
      "path": "christmas.png"
    },
    {
      "startTime": {
        "day": 30,
        "month": 12
      },
      "endTime": {
        "day": 1,
        "month": 1
      },
      "path": "newyear2.png"
    },
    {
      "startTime": {
        "day": 28,
        "month": 12
      },
      "endTime": {
        "day": 3,
        "month": 1
      },
      "path": "newyear.png"
    }
  ]
}

Fields description:

• name the name of the CatPack
• default the path to the default cat
• variants a list of the cats that are visible only on specific days/periods.
• startTime the day from which the variant is visible (inclusive)
• endTime the day until the variant is visible (inclusive)
• path the path to the variant

All paths are relative, so you only need to put the name of the image from the CatPack(with extension).

The default cat is the cat displayed in all periods we can't match any variants.

The variant matching is done by looking if today is between startTime and endTime, if is matched then that variant is displayed.

The order of variants matters as the first variant that matches the period is returned ignoring the rest.

So for the mentioned example, the variants are displayed as follows:

• oneDay.png will be visible only on 12 April each year
• christmas.png from 20 December until 28 December
• newyear.png on 29 December
• newyear2.png from 30 December until 1 January
• newyear.png from 2 January until 3 January
• maxwell.png for the periods that were not mentioned

So an example of order matter is if the newyear.png and newyear2.png orders would be reversed then newyear2.png will never be displayed.

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Pages in Getting Started:

• Installing Prism Launcher
• Installing Java
• Migrating from MultiMC
• Create an Instance
• Downloading Modpacks
• Downloading Mods
• OptiFine Alternatives
• Installing OptiFine
• Controller Support
• Command Line Interface
• Change Themes
• CatPacks
• Data storage