SmartOne Application support multiple playlist format, including almost all available tags are support, above a list of supported tag officially :

tvg-name ; user as stream title
tvg-logo ; user as channel logo or movies/serie poster
group-title ; used as group name for the stream
user-agent ; used to determinate the custom agent
tvg-type ; to determinate the stream type, possible value are live, movie, serie
tvg-serie ; used to determinate the season id to group episode on it
tvg-season ; used to determinate the season of the stream
serie-title ; user to override the series title
tvg-id ; used for EPG info - NOT yet Supported
tvg-tmdb ; used for fetching movie info from tmdb side - NOT yet Supported