Hello, I have been researching how to implement our own HTML and CSS code, I have seen and tried many user solutions to do it and the furthest I have come has been to put a theme and change some colors. I have also read that even if it is OpenSource HomeAssistant limits many things, for example when editing the CSS in the menu on the left.
If there is any way I can edit the full HomeAssistant style please let me know
I don’t know about the abilities of custom html or css. But one tip, but your question in the right category. Because now it’s in “configuration zha” which has nothing to do with frontend coding.
Also I don’t think that the project is blocking you from adding custom frontend code. It might be that for some reason it doesn’t provide an easy way of making changes to it. But with enough effort everything is possible.