Webchat customization for botpress studio with css

hello, i’m unable to find where to upload css file on server side , and what is exactly the URL to put in stylesheet , is it the local stylesheet of the style.css file or server side ?
here is the code to costumize the webchat :

// Initialize the web chat with default options

Hi Nada,

The idea is you need to upload the CSS file somewhere - like S3 bucket, and then use the URL in Botpress webchat channel configuration:

As a workaround, you can go to your bot flow diagram, add a file anywhere:

Upload your file:

Copy the URL:

Then past it in the webchat channel configuration.

thank you , it worked