creating-streamlit-themes

Create a custom Streamlit theme by editing the .streamlit/config.toml file and populating the [theme] section with your base colors, typography, and border options. This enables centralized control of your app's visual appearance without modifying Python code.

You can apply brand colors and typography to a Streamlit dashboard by defining the color palette and font settings in the config.toml theme section. This ensures consistent visual branding across multiple dashboard pages and internal tools.

Streamlit theming supports light and dark modes through optional theme configurations in config.toml. You can define separate color palettes and base settings to satisfy requirements for different visual environments across your data dashboards.

The best way to reuse a base Streamlit theme is through theme inheritance, allowing you to apply a base configuration and override only the specific values needed. This enables rapid prototyping across multiple projects while maintaining brand alignment.

You do not need Python coding experience to customize Streamlit theming. The configuration is handled entirely through the config.toml file, where you iterate on colors and fonts to match your brand guidelines without modifying application code.