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honkoma/docs/config/custom_emoji.md

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Custom Emoji

Before you add your own custom emoji, check if they are available in an existing pack. See Mix.Tasks.Pleroma.Emoji for information about emoji packs.

To add custom emoji:

  • Create the STATIC-DIR/emoji/ directory if it doesn't exist (STATIC-DIR is configurable, instance/static/ by default)
  • Create a directory with whatever name you want (custom is a good name to show the purpose of it). This will create a local emoji pack.
  • Put your .png emoji files in that directory. In case of conflicts, you can create an emoji.txt file in that directory and specify a custom shortcode using the following format: shortcode, file-path, tag1, tag2, etc. One emoji per line. Note that if you do so, you'll have to list all other emojis in the pack too.
  • Either restart pleroma or connect to the iex session pleroma's running and run Pleroma.Emoji.reload/0 in it.

Example:

image files (in instance/static/emoji/custom): happy.png and sad.png

content of emoji.txt:

happy, /emoji/custom/happy.png, Tag1,Tag2
sad, /emoji/custom/sad.png, Tag1
foo, /emoji/custom/foo.png

The files should be PNG (APNG is okay with .png for image/png Content-type) and under 50kb for compatibility with mastodon.

Default file extentions and locations for emojis are set in config.exs. To use different locations or file-extentions, add the shortcode_globs to your secrets file (prod.secret.exs or dev.secret.exs) and edit it. Note that not all fediverse-software will show emojis with other file extentions:

config :pleroma, :emoji, shortcode_globs: ["/emoji/custom/**/*.png", "/emoji/custom/**/*.gif"]

Emoji tags (groups)

Default tags are set in config.exs. To set your own tags, copy the structure to your secrets file (prod.secret.exs or dev.secret.exs) and edit it.

config :pleroma, :emoji,
  shortcode_globs: ["/emoji/custom/**/*.png"],
  groups: [
    Finmoji: "/finmoji/128px/*-128.png",
    Custom: ["/emoji/*.png", "/emoji/custom/*.png"]
  ]

Order of the groups matters, so to override default tags just put your group on top of the list. E.g:

config :pleroma, :emoji,
  shortcode_globs: ["/emoji/custom/**/*.png"],
  groups: [
    "Finmoji special": "/finmoji/128px/a_trusted_friend-128.png", # special file
    "Cirno": "/emoji/custom/cirno*.png", # png files in /emoji/custom/ which start with `cirno`
    "Special group": "/emoji/custom/special_folder/*.png", # png files in /emoji/custom/special_folder/
    "Another group": "/emoji/custom/special_folder/*/.png", # png files in /emoji/custom/special_folder/ subfolders
    Finmoji: "/finmoji/128px/*-128.png",
    Custom: ["/emoji/*.png", "/emoji/custom/*.png"]
  ]

Priority of tags assigns in emoji.txt and custom.txt:

tag in file > special group setting in config.exs > default setting in config.exs

Priority for globs:

special group setting in config.exs > default setting in config.exs