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Created April 23, 2025 00:01
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  1. alula created this gist Apr 23, 2025.
    29 changes: 29 additions & 0 deletions hdr_stickers.md
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    # How to HDR stickers on Discord

    Someone found out HDR emojis and stickers work on Slack: https://sharpletters.net/2025/04/16/hdr-emoji/

    So I've decided to experiment a bit and see if it works on Discord.

    It works! But only if you find a way to pass-through the image as-is through the CDN.

    One of ways to do this is making it an APNG sticker.

    ```bash
    magick emote1.png -duplicate 2 \
    -define quantum:format=floating-point \
    -colorspace RGB -auto-gamma \
    -sigmoidal-contrast 5x10% -depth 16 \
    -profile 2020_profile.icc -quality 100 alula.apng
    ```

    https://storage.alula.me/hdr-emote-meme/emote1.png

    ![alula bunny](https://storage.alula.me/hdr-emote-meme/emote1.png)

    https://storage.alula.me/hdr-emote-meme/alula.png

    ![alula bunny hdr](https://storage.alula.me/hdr-emote-meme/alula.png)

    https://storage.alula.me/hdr-emote-meme/2020_profile.icc

    https://discord.gg/5g9qdABNQ8