I love the new shield effect that I've been seeing lately but what is the thing that looks like a giant red rose trellis that lights up the entire screen with its little checker-board pattern? Its annoying?
Red crosshatch effects would be the Anti-Proton Scan ability of the Jem'hadar ships. It doesn't seems to do any hull damage. It shows up in combat lot as 0. Speculation on TTS last night is that's it's a cloaking debuff. And it's will show as a 20(?) second debuff on your ship.
One observation I had, which may be totally mistaken, is that is also may be a shield drain. While fighting Bug ships last night, I though I say all of my shield facings get drain a bit as I was could in an AP scan before the bug blew up. Like I say, I may be mistaken about that. I plan to pay closer attention as to how an AP Scan debuff affects my ship.