Make Frontend, Theme available in components ( to use in Templating)

testing a data_template in which i would like to use the theme. Seems not available, so this is a request to make that available:

data_template:
message: ‘It is {{ as_timestamp(now()) | timestamp_custom("%X") }},
Sun is {{states.sun.sun.state}} and
Frontend is set to {{states.frontend.theme.friendly_name}}’

In the dev state machine section neither theme nor frontend is available?

Cheers,
Marius