Term · technical
Mini App Theme Sync
A pattern where a Telegram mini-app reads tg.themeParams (bg_color, text_color, button_color, etc) and applies them as CSS variables, so the app matches the user's current Telegram theme (light/dark/custom). Without theme-sync, a mini-app feels foreign — light app in dark Telegram is jarring. The themeChanged event lets the app live-update if the user toggles theme inside Telegram.
Related terms
- Telegram Mini AppA web application that runs inside Telegram via the bot API. Mini apps give advertisers a native-feel experience without leaving t
- Telegram Main Mini AppA bot configuration where the launch-button opens a full-screen mini-app by default instead of a chat. Set via @BotFather, exposed
- Fullscreen Mini AppA Telegram mini-app mode where the web view occupies the entire screen (incl. header bar), giving native-app feel without browser
Cite this entry
Telegram Ads Spy (2026). "Mini App Theme Sync" in Telegram Ads glossary. https://tgadsspy.com/info/theme-sync
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