Custom HTML window (not a prompt) - possible or feature request?

Hey there,

I’ve been looking around and haven’t found anything enlightening. Basically, I want an HTML window to be open in the background of my app. On certain triggers, I want to change the contents of the window. (Doesn’t matter if javascript or voodoo).
The reason why I can’t use the HTML prompt is that it constantly grabs the focus away from my main application.

Right now, my workaround is to have several images open with preview and to move/resize them to a fixed spot on my desktop. I’d imagine one window would be less resource-heavy (I only have 8GB RAM right now) and in general I dislike Preview being open.

Can it be done, or is this a feature request?

Done for the next version.

* Added non-floating option for Custom HTML Prompt.