Problem

Streamlit apps are becoming more and more fully fledged web applications. However, the basic website metadata functionalities are still suboptimal, this causes the app to look kind of weird when shared online.

Solution

I would appreciate it if we could specify more web app manifest parameters via streamlit.config.yaml, so the webpage looks better in search engine results and when shared:

• name
• short_name
• description
• author
• language
• display (default should be standalone)
• icons (ideally just a path to an image and Streamlit will convert it to the different required icon formats/sizes)
• theme_color (default should be theme.primaryColor)
• background_color (default should be theme.backgroundColor)

Personally, I really like how the Nuxt.js PWA module does this, for inspiration see https://pwa.nuxtjs.org/meta.

This could possibly be added to streamlit/config.yaml like this:

[server]
runOnSave = true

[theme]
base = "light"
primaryColor = "#dc2626"

[metadata]
name = "My super long app name"
short_name = "Short app name"
display = "standalone"
icon = "./icon.png" 

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