How to toggle YouTube-style live chat to danmaku

[eggplants]

v5.5.0

Added support for YouTube-style live chat, toggleable with danmaku

But I cannot find toggleable UI in the player.

[Ultroncn]

The mode switch is in Settings → Appearance → “Show live chat and danmaku as chat”:

• On: messages are shown as a YouTube-style chat panel/tab.
• Off: messages are shown as scrolling danmaku over the video.

The player control with the bullet-comment icon is a visibility switch, not the chat-vs-danmaku mode switch. In chat mode, its fullscreen side-panel function is available for the landscape fullscreen video player; that explains why it isn't a mode-toggle menu in the player.

I checked the actual client commit referenced by v5.5.0 (b91f008): the preference is in appearance_settings.xml, with the on/off meanings in strings.xml. BulletCommentsController reads that preference, while toggleVisibility() toggles visibility. This is a source check; I haven't run the Android UI.