HDR‑Infused Emoji

Summary

Need a little more pop to your Slack emoji? Want to really stand out when you react with your favorite image?Turns out you can add HDR emoji to Slack, and they will be rendered in eye-searing brightness, at least on hardware that supports it. Works great on iPhones, and not at all on Android devices.Examples:#Note: These examples will work best when posted to Slack. Support in browsers and on devices varies, YMMV.Script#brew install imagemagick # Adjust the Multiply value up or down to preserve color as opposed to brightness magick input.png \ -define quantum:format=floating-point \ -colorspace RGB \ -auto-gamma \ -evaluate Multiply 1.5 \ -evaluate Pow 0.9 \ -colorspace sRGB \ -depth 16 \ -profile 2020_profile.icc \ output.png You will need the 2020_profile.icc downloaded to your working directory.