[MotherSphere]

Spotter now follows the shared Colony design system end to end: its files live in the standard Colony folders, every screen is drawn from the shared themes and text sizes, Settings became the Colony Preferences page, and the whole interface is available in French.

Files in the standard Colony folders

• Paths come from colony_ui::paths (Colony/Spotter/ under the platform's config, data and cache folders), one sub-folder per kind of file: <config>/preferences/preferences.json, <config>/credentials/, <data>/library/spotter.db, <data>/exports/, <data>/logs/, <cache>/covers/ and <cache>/achievement_icons/. The old base_path family and its fallback to the working directory are gone.
• The first start copies the library, exports and log of Spotter 0.3 and earlier (never moves or deletes them), writes a marker so it happens once, and keeps using the old files if the copy fails.
• Preferences moved from the database to preferences.json, with the shared StandardPreferences flattened in. The old settings row is imported once: the Dark, Darker and Midnight themes, the six accents and the interface scale map to the nearest shared theme, accent and text size.
• After a failed load, nothing is written, preferences.json included.
• Without a system keyring, tokens go to <config>/credentials/tokens.json (0600 on Unix).

Shared themes and typography

• Every colour comes from the active Colony palette. Platforms and statuses use shared accent swatches, and text on a fill uses contrast_on. No colour literal is left in src: the grep git grep -nE 'Color::from_rgba?8?\(|Color \{ *(r|a|g|b):|Color::(WHITE|BLACK)|#[0-9a-fA-F]{6}\b' -- src finds nothing.
• The fonts come from colony-ui, with their licences. assets/fonts is gone.
• Every text is sized with sz(), so both text-size preferences reach it, and the dyslexia font reaches Spotter's own text too. No raw size is left: git grep -nE '\.size\([0-9]' -- src finds nothing. The window-wide UiScale is gone.
• With effects off or reduced motion on, an import adds its games at once instead of cascading them, and the import banner's dots stop moving.

The Preferences page

• Clicking Spotter at the top of the sidebar opens Preferences in place of the current screen. Clicking it again, Close or Esc goes back to the screen it was opened from.
• General, Appearance and Accessibility come from the colony-ui kit. Spotter's own Library and Imports categories follow. Sections are collapsible and start closed. Changing the theme raises the "Theme applied." notification, and notifications can be dismissed with a click.
• Spotter's own options:
  • General: language, start screen, notifications and date format.
  • Appearance: a Layout section (sidebar width, compact list, covers).
  • Accessibility: Color cues (status labels) and Navigation (large click targets).
• The sidebar follows the Colony order: the name, a list label, the sections, then a keyboard hint.

French

• Every interface string goes through src/i18n. Spotter's own strings are in en.json and fr.json (342 keys each). The shared labels come from colony_ui::i18n.
• Plurals, decimals and percentages follow the language.
• The language follows the system (LC_ALL, LC_MESSAGES, LANG) until one is picked in General.
• Game statuses keep their English name in the database. The import banner and log no longer find failures by searching their text for "error".
• The Steam login page shown in the browser is translated and served as UTF-8.
• Tests fail the build when:
  • the two files hold different keys,
  • a string is empty,
  • the placeholders differ between the two languages,
  • a key that is used is missing, or a key is never used,
  • a key repeats a shared colony-ui label.

Notes

• colony-ui is pinned at 0.1.6 and iced stays at 0.14.
• The README, docs/CONFIGURATION.md and the other docs follow the new paths, the Preferences page and the languages.
• The remaining em and en dashes in code comments and log lines are gone (a \u{2014} escape keeps the one test that checks a legacy "no date" value).
• Platforms and statuses take a fixed shared accent key rather than app_tint: its name hash gives Steam and PlayStation the same red, and Epic and Nintendo the same indigo.
• Some technical details from the platform services are not translated. When a network request fails, the service's own error text appears inside a translated message.

Checks

• cargo check --all-targets: no warnings.
• cargo test --lib --test unit_tests on Linux passes (67 + 56 tests), including the new tests (paths migration, preferences import, Preferences toggle, reduced motion skipping the import cascade, i18n tables).
• git grep -nP '\x{2014}|\x{2013}' -- src tests finds nothing.
• The full CI matrix runs on this PR.