[yk-sgr]

Stacked on #3.

What changes

Reduce Motion (System Settings → Accessibility → Display):

• The slide-ins of pages and menus become short fades, as Apple recommends.
• The lyrics jump to the current line instead of scrolling.
• The equalizer next to the playing playlist stands still.
• Loading spinners keep turning: they show progress, which the guidance allows.

Low Power Mode:

• No animations at all, and the accent color switches without a fade.
• The event loop's timer ticks every 100 ms instead of 25 ms.
• A playing track redraws once a second instead of eight times. That is still often enough for the clock; the progress bar moves about a cell per 1.5 s anyway.

cloofy-os::settings::current() reads NSWorkspace.accessibilityDisplayShouldReduceMotion and NSProcessInfo.isLowPowerModeEnabled (guarded with available!(macos = 12.0)). The TUI checks them every 3 s, so toggling either applies without a restart. On other systems both read as off.

Verified

• I forced low_power with a temporary patch (not committed) and measured the idle TUI with /usr/bin/top: 19 → 5 idle wakeups per 2 s sample. CPU barely changes when idle (4.7% → 4.4%, debug build). I couldn't measure the saving while playing without playing audio here.
• Both settings read correctly on this Mac (both off, matching defaults and pmset).
• New test: switching the accent without a fade.

To test by hand

• Turn on Reduce Motion: opening a playlist or the . menu fades instead of sliding; lyrics in z jump line by line
• Turn on Low Power Mode while playing: no animations, and the equalizer stops

🤖 Generated with Claude Code

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[parda21]

Merged through #7, unchanged. Fixed on top:

• 8bf5ddc: the equalizer also stands still in track lists, search results, the artist's popular tracks and on cards, through one helper.
• d747582: a calm-mode jump of the lyrics now asks for a redraw. While paused, they otherwise stayed at the old line.

Page transitions are no longer a sweep at all (the audit work replaced it with a short fade), so Reduce Motion needs nothing there.

🤖 Generated with Claude Code