default will draw the emote as animated or static depending on which kind it is
Currently there is no actual light/dark variance I know of between any emotes
Whats your use case for this?
Why do you need this information.
The URL to an emote is templated you just would always use default
The format of the image to get. For example, a static PNG or animated GIF. Use
defaultif you want the server to return an animated GIF if it exists, otherwise, a static PNG.