I depends of the kind of media I've most consumed recently. When I only read for some time, I imagine meaning without them being necessarely picture. When I've consume a lot of image-base content (comics and video alike), I imagine with picture.

Recently, I've saw zoom in, out and fades out. And for the first time, I've heard music!

Funny thing, my thought is also very dependent of my current media consumption. When I read regularly I have a narration. When I read a lit my thought are grammatically constructed. Like if my thought where phrase without me having to actually use word. Idk how to describe it but I don't hear words in my head, nor do I read them but my thoughts are speech...