Not sure why, maybe because you have not added the extra_html_url bits to your config?
I guess you’re trying to achieve the same results as me, here’s how I did it:
i’m using the local version, and have the basic custom ui state cards showing (just using the show last changed option for now).
there is supposed to be a new option in the home assistant configuration for custom UI tweaks, but it does not show up automatically. i’ve restarted home assistant, cleared cache, restarted browser, and still not there.
how to i get the ui component for the custom ui tweaks? currently running 0.79.2
whoa, weird. after restarting about 3 more times playing with reorganizing some groups and adding in some lights into a group i forgot to add yesterday, the custom ui tweaks just magically appeared in the configuration panel. strange as i see there is nothing in the logs saying anything is different
Had a few issues after 0.78 (I think) and ended up giving up and using Lovelace instead as all I was using custom-ui for was the last changed additional line which lovelace does by default/as standard
i think i misunderstood the purpose of the device name field. after reading the docs a couple more times, i think this is so you can setup a device name on each instance you log in with HA on (phone chrome browser, desktop browser, etc) and can then allow that device name to be used with custom attributes?
i really wish there were more front end configuration controls. i know it will come, but having to configure everything in text files (whether it is frontend, custom-ui, lovelace) is a bit annoying. totally works, but annoying