App Theme & Language: Dark Mode, Custom Colours & 31 Languages
2026-09-20
#Product Guide #app language#dark mode#theme color#app settings#multilingual app#rtl support#watermark camera GPS Map Camera: Timestamp
Two settings change almost everything you look at in a camera app — and one of them also changes something that ends up printed on your photos. App language decides the words the app uses, including some auto-generated labels that appear inside the watermark. App theme decides how the interface looks: follow the system, force light or dark, and pick the accent colour you want to stare at all day.
This guide covers both: the 31 languages and how the per-app language setting works, right-to-left support, the light/dark/accent-colour system with its custom colour picker, how to apply a change, and the caveats that matter when a whole team is shooting with the same app.
Quick answer: TempoAI Camera ships with 31 languages plus a “System” option that follows your phone. The language is applied per app — changing it does not change your phone’s language — and it also drives the localized labels the app writes into a watermark, such as AQI level wording, compass directions and address ordering. The theme setting is separate: Follow system, Light or Dark for brightness, and Default plus seven accent colours or your own custom colour for the accent. Both screens apply only after you tap the ✓ in the top bar; leaving without it discards the change.
Language: 31 Options, Applied Per App
The language screen lists the app’s own translations. Choose one, and the app reloads its text — menus, settings, prompts, template names — in that language. “System” is the default: the app then follows whatever language your phone uses.
The available languages are:
- East & Southeast Asia: Simplified Chinese, Traditional Chinese, Japanese, Korean, Indonesian, Malay, Thai, Filipino, Vietnamese
- South & West Asia: Hindi, Bengali, Urdu
- Europe: English, French, German, Italian, Spanish, Portuguese (Brazil), Portuguese (Portugal), Dutch, Polish, Czech, Swedish, Danish, Norwegian (Bokmål), Finnish, Russian, Ukrainian, Turkish
- Middle East: Arabic, Hebrew
Each entry is shown by its own name, so you can find your language even if the app is currently displaying one you cannot read.
What “per-app language” actually means
- Your phone stays as it is. The app switches its own locale; system menus, notifications from other apps and the rest of the device are untouched. Choosing “System” hands control back to the phone’s language.
- The setting is local to the device. Two phones signed into the same account can run different app languages — useful when colleagues prefer different languages but the output has to match.
- Right-to-left languages are mirrored. Arabic, Urdu and Hebrew are right-to-left, and the app is built to mirror its layouts for them, so navigation and reading order follow the language.
What the language setting changes beyond menus
This is the part people miss: some of the text on a photo is generated by the app rather than typed by you.
| Item | Follows the app language? | Why it matters |
|---|---|---|
| Menus, settings, dialogs, template names | Yes | The interface you work in every day |
| Air-quality level wording on the watermark (for example Excellent / Good / Lightly polluted) | Yes | Two phones with different app languages will stamp the same reading with different words |
| Compass direction words (North-East, South-West…) and the optional Chinese direction words for coordinates | Yes | The heading on the stamp reads in the app’s language |
| Address line ordering | Yes — one of the order presets sorts the address automatically by the app language (another sorts by the address’s country) | Keeps the address line in the order readers of that language expect |
| Weekday and date formatting shown by the app | Yes | Names of days follow the app’s locale |
| Text you typed yourself (custom text lines, notes, project names, your logo) | No | Your own words are never translated — switch language and they stay exactly as written |
If a team shares a stamp format, agree on one app language as well: it keeps the auto-generated words and the address order identical across everyone’s photos.
Theme: Brightness and Accent, Chosen Separately
The theme screen has two independent choices. Brightness decides light or dark; the accent decides what colour the interface highlights with. You can mix them freely — a dark theme with a cyan accent, or a light theme with a warm orange one.
| Setting | Options | What it is for |
|---|---|---|
| Brightness mode | Follow system · Light theme · Dark theme | Follow system changes with your phone’s dark-mode schedule; Light is easier in direct sunlight; Dark is easier at night and in low light |
| Accent colour | Default, Red, Orange, Yellow, Green, Cyan, Blue, Purple | The colour of buttons, highlights and selected controls throughout the app |
| Custom colour | Your own colour, chosen with the hue / saturation / brightness picker | Match a company colour, or just pick something you enjoy looking at |
The custom colour starts from a violet default and is fully adjustable, so the app can carry a brand colour rather than one of the presets. Because the app ships both light and dark resources, switching modes restyles the interface immediately — camera chrome, settings screens, dialogs and the gallery — without restarting anything.
What the theme does not change
- Your photos and videos. The theme is interface only; it does not tint captured images or change how the sensor records them.
- Your watermark colours. The stamp has its own styling (text colour, gradients, card background) set in the watermark editor — the app accent and the stamp are separate. A blue app theme will not turn your watermark blue.
- Existing photos. Changing theme or language never rewrites files; both settings apply to what you see and to new captures.
How to Apply a Change
Both screens work the same way, and the app is explicit about it:
- Open Settings and choose Language or App theme.
- Make your selection — tap a language, or pick a brightness mode and an accent colour.
- Tap ✓ in the top bar to apply. The screen tells you this directly, and if you go back without tapping ✓ the change is discarded.
- Return to the camera. The interface is already in the new language or theme.
Practical Uses for Both Settings
| Situation | What to set |
|---|---|
| Night shifts, indoor inspections, evening events | Dark theme (or Follow system, if your phone already switches at sunset) |
| Outdoor work in bright sun | Light theme, with a high-contrast accent such as blue or cyan |
| A team that mostly reads one language | Set that language on every device so AQI wording and compass labels match |
| Bilingual workplaces | Keep each person’s device in their own language; only the auto-generated stamp words differ, and the typed ones never change |
| Brand consistency | Use the custom accent colour for the app and a matching watermark template for the photos |
| Arabic, Urdu or Hebrew speakers | Choose that language and the layout mirrors accordingly |
Caveats Worth Knowing
| Point | What it means |
|---|---|
| You must confirm with ✓ | Backing out of the screen without tapping ✓ discards your selection — the app tells you this on the screen itself |
| Your own text is never translated | Custom text, notes and project names on the watermark stay exactly as you typed them, in any language setting |
| Auto-generated stamp words do follow the language | AQI levels, compass words and the automatic address ordering are localized — mix languages across a team and the stamps will differ in wording |
| It is an app setting, not a phone setting | Changing the app language leaves the rest of the device alone; “System” hands the choice back to your phone |
| The theme is not the watermark | Accent colour and brightness affect the interface only; watermark styling lives in the watermark editor |
| Settings are per device | They are not synced between phones, so a fleet rollout means setting each device once |
| Some system dialogs stay in the phone’s language | File pickers, permission prompts and other operating-system screens follow the device, not the app |
Frequently Asked Questions
How many languages does the app support?
31 languages plus a “System” option that follows the phone: English, Simplified and Traditional Chinese, French, Japanese, Korean, Arabic, Russian, German, Italian, Portuguese (Brazil and Portugal), Hindi, Spanish, Czech, Indonesian, Malay, Dutch, Polish, Swedish, Thai, Filipino, Turkish, Ukrainian, Vietnamese, Bengali, Urdu, Hebrew, Danish, Norwegian (Bokmål) and Finnish.
Will changing the app language change my phone’s language?
No. The language is applied to the app only. Everything else on the device keeps the language you had set, and choosing “System” makes the app follow the phone again.
Does the language setting change the words on my watermark?
It changes the words the app generates — for example air-quality level names, compass directions and automatic address ordering. It never translates text you typed yourself, such as custom text lines or notes.
Which languages are right-to-left?
Arabic, Urdu and Hebrew. The app is built to mirror its layouts for them, so navigation and reading order follow the language.
What theme options are there?
Brightness: follow system, light or dark. Accent: the default plus red, orange, yellow, green, cyan, blue and purple, or a custom colour you pick with a hue / saturation / brightness picker.
Does the theme change how my photos look?
No. The theme styles the app interface — camera controls, settings, dialogs and the gallery. Your photos, videos and watermark colours are unaffected.
Why did my theme or language change disappear?
Because the change is applied only when you tap ✓ in the top bar. Leaving the screen without confirming discards the draft selection — reopen the screen and confirm with ✓ this time.
Can I match the app to my company colour?
Yes — use the custom accent colour for the app interface, and build a watermark template with the same palette for the photos, since the two are styled separately.
Two Minutes in Settings, Every Day of Use
Language and theme are the settings you look at more often than any other: one decides the words, the other decides the light you are reading them in. Set both deliberately — especially on a team — and the app feels made for the way you work.
- Install TempoAI Camera: TempoAI Camera on Google Play
- Open Settings and set Language, then App theme — and remember to tap ✓
- If you work in a team, align the app language so the auto-generated stamp words match — see the watermark template guide
Related reading: the complete watermark camera guide, file names and save folders, and gallery management.