How to set theme background image so that one background image works perfectly on both PC and Mobile App Chrome browser?

[tom_l]

Lovelace does not accept templates without a custom card like this:

Lovelace card-templater card (Jinja2 card templating in Lovelace!)

I had looked at the config-template card but, since I wanted to be able to reuse the Jinja2 templates I use in the rest of Home Assistant, I decided to see if I could create a card like that which could apply Jinja2 templates Lovelace cards. Introducing the card-templater card https://github.com/gadgetchnnel/lovelace-card-templater Installation This requires card-tools to be installed, check the link for details on installing this if you don’t have it installed. This card can either be instal…

Or this if you prefer JavaScript to JINJA

100% Templatable Lovelace Configurations

Nice one Ian!