2025年7月にiOS 15とその他の古いブラウザをサポート終了

[jesus2099]

@david

From 1st May 2025, Discourse will start using some modern browser features which are unavailable on iOS 15, and some other old browsers.

Please wait a little more, relative colour syntax is not even supported in some Chrome version 132, which is still ultra recent 2025 version!

Or descope relative colours.