Im not sure i get it yet.
So i use an animated gif... but how will that work in HA?

In HA i use an picture elements card.
The fireplace is an element
I have an on and off state of that element, where the off is the normal picture of sweet home 3d without lights
And the on picture is a photo of sweet home, but with that light/fireplac turned on.

So when i take that, while using the gif, it wont flicker right?
But i cant point to that gif either, cause then i dont have my sweet home 3d plan?

I hope this is clear.