i18n: add Swedish (sv)

Adds a complete Swedish catalog (2,961 messages) and registers sv in the
locale list, catalogs, language picker and package boundaries. Browsers set
to Swedish get it at once; ?lang=sv or the language picker choose it
elsewhere. Numbers and dates come out Swedish from Intl.

- docs/translations/sv.md: style (imperative without a pronoun, closed
  compounds, decimal comma, space before units and %) and the glossary.
- Entries that stay identical to English on purpose (codes such as HDG and
  FOV, product, place and source names) are listed under sv in
  same-as-english.json.
- The picker-order test places Svenska after Português.
- docs/CURRENT-STATE.md and docs/TRANSLATORS.md list the new language.

The translation comes from God's Eye View Sverige, a Swedish fork, and was
brought up to date with main (wildlife sightings, event age filter, traffic
styles and the rest).

Co-Authored-By: Claude Opus 5.5 <[email protected]>

docs/CURRENT-STATE.md

@@ -4285,7 +4285,7 @@ test:track` 43 tracking invariants · headless QA harnesses under
 
 ### Interface localization (October 2026)
 
-Shipped locales: **en** (source and fallback), **ar**, **de**, **es**, **fr**, **it**, **ja**, **pt** (Brazilian Portuguese), **ru**, **uk**, **zh-CN** and **zh-Hant**. The code lives in
+Shipped locales: **en** (source and fallback), **ar**, **de**, **es**, **fr**, **it**, **ja**, **pt** (Brazilian Portuguese), **ru**, **sv**, **uk**, **zh-CN** and **zh-Hant**. The code lives in
 `src/i18n/`. How to mark UI text: [`docs/I18N.md`](./I18N.md); translator workflow:
 [`docs/TRANSLATORS.md`](./TRANSLATORS.md).
 

docs/TRANSLATORS.md

@@ -1,6 +1,6 @@
 # Translating God's Eye View
 
-Shipped languages: **English** (source and fallback), **Arabic** (`ar`), **German** (`de`), **Spanish** (`es`), **French** (`fr`), **Italian** (`it`), **Japanese** (`ja`), **Brazilian Portuguese** (`pt`), **Russian** (`ru`), **Ukrainian** (`uk`), **Simplified Chinese** (`zh-CN`) and **Traditional Chinese** (`zh-Hant`).
+Shipped languages: **English** (source and fallback), **Arabic** (`ar`), **German** (`de`), **Spanish** (`es`), **French** (`fr`), **Italian** (`it`), **Japanese** (`ja`), **Brazilian Portuguese** (`pt`), **Russian** (`ru`), **Ukrainian** (`uk`), **Simplified Chinese** (`zh-CN`), **Traditional Chinese** (`zh-Hant`) and **Swedish** (`sv`).
 
 ## How it works
 
@@ -63,4 +63,4 @@ These are contracts, not copy: layer ids and registry keys, status enums and oth
 
 ## Language notes
 
-Each language keeps its glossary, plural forms, units and style in its own file, `docs/translations/<code>.md`: [Arabic](./translations/ar.md), [German](./translations/de.md), [Spanish](./translations/es.md), [French](./translations/fr.md), [Italian](./translations/it.md), [Japanese](./translations/ja.md), [Brazilian Portuguese](./translations/pt.md), [Russian](./translations/ru.md), [Ukrainian](./translations/uk.md), [Simplified Chinese](./translations/zh-CN.md), [Traditional Chinese](./translations/zh-Hant.md). Read it before translating, and add a term there when you settle on one.
+Each language keeps its glossary, plural forms, units and style in its own file, `docs/translations/<code>.md`: [Arabic](./translations/ar.md), [German](./translations/de.md), [Spanish](./translations/es.md), [French](./translations/fr.md), [Italian](./translations/it.md), [Japanese](./translations/ja.md), [Brazilian Portuguese](./translations/pt.md), [Russian](./translations/ru.md), [Ukrainian](./translations/uk.md), [Simplified Chinese](./translations/zh-CN.md), [Traditional Chinese](./translations/zh-Hant.md), [Swedish](./translations/sv.md). Read it before translating, and add a term there when you settle on one.

docs/translations/sv.md

@@ -0,0 +1,84 @@
+# Swedish (`sv`)
+
+Catalog: `src/i18n/locales/sv.json`. General rules: [TRANSLATORS.md](../TRANSLATORS.md).
+
+Translation source: [God's Eye View Sverige](https://github.com/Kajjan7610/Gods-view-sweden) by Kaj Obst, November 2026.
+
+## Style
+
+- Standard Swedish as in Swedish software and on Swedish authority sites (SMHI, Trafikverket, Polisen).
+- Actions and hints use the imperative without a pronoun: «Försök igen», «Klicka på en kamera för att aktivera den», «Välj en tagning först», «Tillåt mikrofonen och försök igen». Avoid «du»/«ni»; "your" becomes «egen» or is left out: «Egen RTL-SDR-mottagare», «Stationen ser din IP-adress» only where a person must be addressed.
+- Sentence case, not Title Case: "Live Flights" → «Liveflyg», "Provider Settings" → «Leverantörsinställningar». UPPERCASE English stays UPPERCASE: «LIVEDATA AV», NOT AN ALL-CLEAR → «INTE FARA ÖVER».
+- Compounds are written as one word, with a hyphen after a name, code or abbreviation: «datalager», «väderrutor», «TomTom-nyckel», «AIS-fartyg», «Street View-reserv». Never split a compound with a space.
+- Short labels, chips and HUD readouts stay short; use a standard abbreviation with a period over a wrapped line: RÄCKV., HAST., NEDERB., ÖVR., MEDD., FÖRST., JMF., KAL.
+- The avionics codes HDG, BRG, CRS, DEST, SPD, ALT, GS, TRK, V/S, FOV and SQUAWK stay in English, as in the cockpit. Words in a sentence are translated: heading → «kurs», bearing → «bäring», range → «räckvidd».
+- A dash between clauses is a spaced en dash « – ». Quotes are ”…” (Swedish closing quotes on both sides).
+- Status and waiting messages: «Väntar på uppdatering», «Laddar …». Reasons after a dash stay lower case: «Scenen sparades inte – projektet är större än 5 MiB».
+- A layer named in a sentence takes its panel name in quotes: «Lagret ”Liveflyg” är inte aktiverat».
+- Rolling windows say their length: LAST YEAR → «SENASTE 12 MÅN.», LAST MONTH → «SENASTE 30 DAGARNA».
+- Keyboard keys: Mellanslag, Backsteg, Skift; Esc, Enter, Tab and letter keys stay.
+- Decimal comma in fixed text: «M4,4», «28,2710° N». Thousands separator is a space: «1 000 km». Formatted numbers come from `Intl` and are already Swedish.
+- Units: km, m, km/h, m/s, kn (knop), ft (fot), hPa, MW, h, min, s, d (dygn, in short readouts); in UPPERCASE text KM, KM/H, KN, FT, MIN, H, D. A space between number and unit, also before %: «{value} m», «{count} min», «50 %». `°` sticks to the number.
+- "ago": «för {count} min sedan», short «{count} min sedan». When a placeholder already holds a localized "ago" text (`{age}`, `{ago}`), do not add «sedan» again.
+- Compass points use O for öst and V for väst, as SMHI does: N, NNO, NO, ONO, O, OSO, SO, SSO, S, SSV, SV, VSV, V, VNV, NV, NNV; hemisphere letters N, S, O, V.
+- Routing: «Sväng {direction} in på {road}», «Fortsätt {direction}», «Ta {exit} avfarten» with ordinals «2:a», «3:e».
+
+## Plurals
+
+A `tn()` entry needs two forms. `Intl.PluralRules('sv')` picks:
+
+| Form    | Counts                      | Example     |
+| ------- | --------------------------- | ----------- |
+| `one`   | 1                           | 1 kamera    |
+| `other` | everything else: 0, 2, 1,5… | 3 kameror   |
+
+Abbreviated units and codes do not change: «{count} MEDD.», «{count} HÖRDA».
+
+## Glossary
+
+| English                                        | Svenska                                                         |
+| ---------------------------------------------- | --------------------------------------------------------------- |
+| layer / data layer                             | lager / datalager                                               |
+| feed / source / data source                    | flöde / källa / datakälla                                       |
+| LIVE (status) / live data                      | LIVE / livedata                                                 |
+| SIMULATED                                      | SIMULERAT                                                       |
+| stale / degraded / unavailable                 | inaktuell / begränsad / otillgänglig                            |
+| retry / retrying / retrying slowly             | nytt försök / försöker igen / försöker igen med längre intervall |
+| fallback                                       | reserv                                                          |
+| key (API key) / POWER UP / POWERED UP          | nyckel / KOPPLA PÅ / PÅKOPPLAD                                  |
+| Provider Settings                              | Leverantörsinställningar                                        |
+| ON / OFF (state chips)                         | PÅ / AV                                                         |
+| enable / disable                               | aktivera / inaktivera                                           |
+| globe / map / map source / basemap             | glob / karta / kartkälla / bakgrundskarta                       |
+| aircraft / flight / military flights           | luftfartyg (short labels: flygplan) / flygning / militärflyg    |
+| vessel, ship                                   | fartyg                                                          |
+| satellite / shell (Starlink)                   | satellit / skal                                                 |
+| launch (rocket) / launch site / space mission  | uppskjutning / uppskjutningsplats / rymduppdrag                 |
+| contact / tracking                             | kontakt / följning                                              |
+| installation / site                            | anläggning / plats                                              |
+| camera / CCTV camera                           | kamera / CCTV-kamera                                            |
+| earthquake / active fire / fire perimeter      | jordbävning / aktiv brand / brandgräns                          |
+| cyclone / advisory (NHC) / cone                | cyklon / bulletin / kon                                         |
+| radio station / broadcast FM                   | radiostation / FM-radio                                         |
+| road / traffic flow                            | väg / trafikflöde                                               |
+| transit / bike share                           | kollektivtrafik / hyrcyklar                                     |
+| scene / shot / capture shot / camera move      | scen / tagning / spara tagning / kameraåkning                   |
+| anchor / data pack / bundle                    | ankare / datapaket / paket                                      |
+| briefing / panel / dock                        | genomgång / panel / docka                                       |
+| preset / visual preset                         | förval / visuellt förval                                        |
+| Scope (circular viewport mask) / keyhole       | Scope / nyckelhål                                               |
+| overlay / detection overlay                    | överlägg / detekteringsöverlägg                                 |
+| Clean UI                                       | Rent gränssnitt                                                 |
+| Night vision / Thermal / Snow (styles)         | Mörkerseende / Värmekamera / Snö                                |
+| heading / altitude / ground speed              | kurs / höjd / markfart                                          |
+| RANGE / PITCH / HGT (CCTV calibration chips)   | RÄCKV. / LUTN. / HÖJD                                           |
+| PREV / NEXT / RESUME                           | FÖRRA / NÄSTA / FORTSÄTT                                        |
+| nearest (spatial)                              | närmaste                                                        |
+| expand / collapse                              | fäll ut / fäll ihop                                             |
+| Street Level / Street View (Google)            | Gatunivå / Street View                                          |
+| Recent Imagery                                 | Senaste bilder                                                  |
+| voice (control) / voice session                | röststyrning / röstsession                                      |
+| click / tap / press a key                      | klicka / tryck / tryck på tangenten                             |
+| card / label (on the map) / clear (layers)     | kort / etikett / stäng av                                       |
+| frame (weather, video) / image                 | bildruta / bild                                                 |
+| road condition / incident / roadwork           | väglag / händelse / vägarbete                                   |

scripts/package-boundaries.json

@@ -73,6 +73,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -640,6 +641,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -688,6 +690,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -729,6 +732,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -772,6 +776,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -799,6 +804,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -829,6 +835,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -866,6 +873,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -915,6 +923,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -942,6 +951,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -1122,6 +1132,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -1311,6 +1322,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -1396,6 +1408,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -1454,6 +1467,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -1526,6 +1540,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -1563,6 +1578,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -1604,6 +1620,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -1642,6 +1659,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -1683,6 +1701,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -1733,6 +1752,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -1780,6 +1800,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -1842,6 +1863,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -1879,6 +1901,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -1936,6 +1959,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -2007,6 +2031,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -2045,6 +2070,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -2094,6 +2120,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -2124,6 +2151,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -2188,6 +2216,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -2266,6 +2295,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -3197,6 +3227,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -3922,6 +3953,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -4098,6 +4130,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -4130,6 +4163,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -4175,6 +4209,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -4213,6 +4248,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -4319,6 +4355,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -4392,6 +4429,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -4672,6 +4710,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -4726,6 +4765,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -4788,6 +4828,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -4812,6 +4853,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -4880,6 +4922,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -4929,6 +4972,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json"
@@ -5127,6 +5171,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",
@@ -5173,6 +5218,7 @@
       "src/i18n/locales/ja.json",
       "src/i18n/locales/pt.json",
       "src/i18n/locales/ru.json",
+      "src/i18n/locales/sv.json",
       "src/i18n/locales/uk.json",
       "src/i18n/locales/zh-CN.json",
       "src/i18n/locales/zh-Hant.json",

src/i18n/index.js

@@ -26,6 +26,7 @@ import it from './locales/it.json' with { type: 'json' };
 import ja from './locales/ja.json' with { type: 'json' };
 import pt from './locales/pt.json' with { type: 'json' };
 import ru from './locales/ru.json' with { type: 'json' };
+import sv from './locales/sv.json' with { type: 'json' };
 import uk from './locales/uk.json' with { type: 'json' };
 import zhCN from './locales/zh-CN.json' with { type: 'json' };
 import zhHant from './locales/zh-Hant.json' with { type: 'json' };
@@ -39,6 +40,7 @@ const CATALOGS = Object.freeze({
   ja,
   pt,
   ru,
+  sv,
   uk,
   'zh-CN': zhCN,
   'zh-Hant': zhHant,

src/i18n/locale.js

@@ -18,6 +18,7 @@ export const LOCALES = Object.freeze([
   'ja',
   'pt',
   'ru',
+  'sv',
   'uk',
   'zh-CN',
   'zh-Hant',
@@ -34,6 +35,7 @@ export const LOCALE_NAMES = Object.freeze({
   ja: '日本語',
   pt: 'Português (Brasil)',
   ru: 'Русский',
+  sv: 'Svenska',
   uk: 'Українська',
   'zh-CN': '中文（简体）',
   'zh-Hant': '中文（繁體）',

src/i18n/same-as-english.json

@@ -944,6 +944,169 @@
     "iNaturalist",
     "iNaturalist ↗"
   ],
+  "sv": [
+    "STATION",
+    "NAV",
+    "GEO",
+    "SAR",
+    "CRT",
+    "NVG",
+    "FLIR",
+    "REC",
+    "AIS: --",
+    "HDG {value}°",
+    "BRG {value}°",
+    "BRG —",
+    "CRS {value}°",
+    "Station {id}",
+    "Station",
+    "FOV {value}°",
+    "▲ {frp} MW",
+    "T−{time} · {mission}",
+    "{value} KM",
+    "{value} KM/S",
+    "STATUS · ",
+    "DESTINATION",
+    "STATUS",
+    "T minus {seconds}",
+    "Ambient",
+    "Blues",
+    "Country",
+    "Dance",
+    "Folk",
+    "Funk",
+    "House",
+    "Indie",
+    "Jazz",
+    "Latin",
+    "Metal",
+    "Oldies",
+    "Pop",
+    "Punk",
+    "R&B",
+    "Reggae",
+    "Rock",
+    "Soul",
+    "Techno",
+    "Trance",
+    "AIS: {name}",
+    "{type}  SPD: {speed}  HDG: {heading}",
+    "POS: LIVE",
+    "POS: {time}Z",
+    "Bloom",
+    "{domain} · {age}",
+    "{cohort} · {contact}",
+    "{side} {angle}",
+    "DEST {bearing}",
+    "Normal",
+    "Anime",
+    "Noir",
+    "{aircraftClass} · {distance}",
+    "CCTV",
+    "Radio",
+    "{state} · {source}",
+    "{state} · {source} · {detail}",
+    "{source} · {loadingLabel}",
+    "{state} · {source} · {detail} · {ago}",
+    "{state} · {source} · {ago}",
+    "{source} · {ago}",
+    "{name}: {state}",
+    "DEST ---°",
+    "TEMP",
+    "RADIO",
+    "COCKPIT",
+    "Layout",
+    "Minimal",
+    "Scope",
+    "{speed} kn",
+    "NORMAL",
+    "ANIME",
+    "NOIR",
+    "view band|GLOBAL",
+    "{distance} · {duration} · {mode}",
+    "S2 · {name}",
+    "1090 MHz",
+    "978 MHz UAT",
+    "V/S {rate}",
+    "POSITION {age}",
+    "fire behavior|Minimal",
+    "{county} County",
+    "Sentinel-2",
+    "Sentinel-2 via HLS",
+    "Landsat 8/9",
+    "Landsat 8/9 via HLS",
+    "Google Street View",
+    "GOOGLE STREET VIEW",
+    "Hybrid",
+    "{state} · {time} · {lag}",
+    "{state}: {time}",
+    "RADAR · {units}",
+    "REGION",
+    "FILTER",
+    "{source} HTTP {status}",
+    "N",
+    "S",
+    "WHOT/BHOT",
+    "Ironbow",
+    "HDG",
+    "FOV",
+    "ΔN",
+    "LIVE",
+    "OK",
+    "{value} KM/H",
+    "SQUAWK {code} · {status}",
+    "{aircraftClass} · {emergency} · {feedState}",
+    "S2 GhostMaps",
+    "NASA FIRMS · LIVE",
+    "feed status|live",
+    "DSP {count} blocks",
+    "Austin",
+    "San Francisco",
+    "New York",
+    "Tokyo",
+    "London",
+    "Paris",
+    "Dubai",
+    "Washington DC",
+    "Tallinn",
+    "Los Angeles",
+    "{category} ({count})",
+    "A / B",
+    "km/h",
+    "m/s",
+    "mph",
+    "hPa",
+    "ft",
+    "km",
+    "m",
+    "h",
+    "min",
+    "s",
+    "dB",
+    "STD",
+    "Plan",
+    "MINI",
+    "standard",
+    "mini",
+    "STANDARD",
+    "{items} {scope}",
+    "FT",
+    "MIL",
+    "MM",
+    "SIG",
+    "AUTO",
+    "FM MHZ",
+    "Cyber",
+    "Sonar",
+    "Cyan",
+    "≥ {value} MW",
+    "{count} {kind}",
+    "Be Whale Wise",
+    "Salish Sea",
+    "Acartia",
+    "CC BY 4.0",
+    "iNaturalist"
+  ],
   "uk": [
     "AIS: --",
     "AIS: {name}",

src/ui/localePicker.test.mjs

@@ -52,6 +52,7 @@ test('the current language comes first, the rest by their own names', () => {
       'fr',
       'it',
       'pt',
+      'sv',
       'ar',
       'zh-CN',
       'zh-Hant',
@@ -73,6 +74,7 @@ test('the current language comes first, the rest by their own names', () => {
       'fr',
       'it',
       'pt',
+      'sv',
       'ru',
       'uk',
       'ar',
@@ -96,6 +98,7 @@ test('the current language comes first, the rest by their own names', () => {
       'fr',
       'it',
       'pt',
+      'sv',
       'ru',
       'uk',
       'ar',
@@ -120,6 +123,7 @@ test('the current language comes first, the rest by their own names', () => {
       'fr',
       'it',
       'pt',
+      'sv',
       'ru',
       'uk',
       'zh-CN',