- Wheel zoom around the cursor on both curve plots and the spectrogram:
Ctrl zooms time only, Shift values only, scrolling over an axis zooms
that axis; drag pans live; double-click resets. The zoom window survives
redraws, overlay changes and resizes, and resets when units change.
- Guide and reference lines are painted in a uPlot draw hook, so a dragged
reference line (now with a triangle handle and label) follows the cursor
instead of jumping on release. Per-track integrated lines take the
track's colour when overlaid.
- In-plot legend like pyqtgraph's: a swatch per track plus LRA / max dBTP.
- Metadata shows integrated loudness, LRA and max true peak (prefetched
first) instead of debug rows; the file list shows each track's LUFS.
- UI, canvas and axis text prefer M PLUS 1 Code, else the system font.
- Spectrogram image is cached offscreen so panning is cheap; its tick
labels adapt to the zoom level.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015UXA39Sh9coAx4FhRkd8R2
mikkeli
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