[FrancescoCoding]

Everything shipped in v0.2.0. All of it is opt in: a fresh install or an upgrade looks and behaves like 0.1.3 until something is changed.

What is in here

• Themes menu with 37 palettes (14 editor, 23 community), swatches, a menu that stays open while cycling, Surprise me, and File > Import theme for any editor colour theme file. Attributions in THIRD_PARTY_NOTICES.md and under Help.
• Customise window: corners, density, scale, fonts, monospace numbers, shadows, stripes, button frames, custom accents (the tray icon follows them).
• View menu: columns, plot fill and line width, header plot history, always on top, compact mode, filter box.
• Plots: scroll to zoom the time axis, drag to pan, double click or right click > Reset view; rate axis in KB/s and MB/s with 1, 2, 5 steps; plot options in the right click menu.
• Table: filter box (Ctrl+F) and an Active chip; column widths, sort order and panel sizes remembered; folder button in the detail panel.
• Rules can be disabled without deleting them, from the right click menu or the tray menu, which lists every rule with a check mark. The tray tooltip shows live totals.
• Fixes: the limit field only accepts a number and matches the unit box height; settings and rules files with a byte order mark load instead of resetting.
• Layout: window size and position persist (eframe persistence), default window 1280 by 800.
• Internal: new theme, appearance, plot, tray and units modules; rules gained a disabled flag that older files load as active.

Checks

• cargo fmt --check, cargo clippy --all-targets -- -D warnings, cargo test (87 tests) all pass at the tip.
• Each commit compiles on its own.

Thanks to @Amel-Okicic for the themes idea in #9.