Selected fonts and themes not applied when app is deployed

I have completed the development of my streamlit app, i used some custom fonts and themes which i have copied in to a config.toml file in my .streamlit folder in my root folder. The selected theme and font works on my local server during development, but when I deployed my app on azure app service, the theme is not applied, it is reverted to the default themes and fonts. Who can help with this issue?

Do you see any warnings/errors in the logs?