Fading in tumblr theme?

[Horo]

Long time ago, I saw person on Tumblr with theme that had post, not just picture, fade in as you scroll down the page ?

I can not find person's Tumblr blog again, and I am wondering, does anyone know where I can find theme like that ?

It was all mostly white, but at the bottom of the screen, was something like mist, looked like. So as you scroll down, it revealed more posts fade-ing in.

Thank you!

[Mgel]

many themes have fading images/posts
just search tumblr for "themes"