Allow HTTP URLs for dark_logo and light_logo

[IrrerPolterer]

Status Quo:

The html_theme_options parameter allows configuration of the logo using locally stored image files in the static directory, like so:

html_static_path = ["_static"]
html_theme_options = {
    "light_logo": "my-logo-light.png",
    "dark_logo": "my-logo-dark.png",
}

This works well, assuming the image files are stored in the _static directory.

Problem Statement:

I tend to store things like logos, favicons and related resources in a cloud storage solution, where they are accessible by various services. This avoids the need to store copies of these files along side the code of each of these applications.

I would like to specify a remote URL for the logos, to make use of my centralized resource storage. But currently, these configuration options only support locally stored resource paths.

Suggestion:

In addition to local static resource paths, allow for HTTP URLs to be used to specify logo images. Example:

html_theme_options = {
    "light_logo": "https://example.org/storage/my-logo-light.png",
    "dark_logo": "https://example.org/storage/my-logo-dark.png",
}

[pradyunsg]

Seems reasonable -- could you file a trackable task issue for this? :)

[IrrerPolterer]

Will do!