Andrew Cherenkov Sprites are posted in .gif form on dark backgrounds, as they don't work well on light ones.

Director Sprites are posted in .gif form on dark backgrounds, as they don't work well on light ones.

Lapis Roman Sprites are posted in .gif form on dark backgrounds, as they don't work well on light ones.

Moriyama Sprites are posted in .gif form on dark backgrounds, as they don't work well on light ones.

Pierre Ruryk Sprites are posted in .gif form on dark backgrounds, as they don't work well on light ones.

Sergius XIV Sprites are posted in .gif form on dark backgrounds, as they don't work well on light ones.

Suou Uzuki Sprites are posted in .gif form on dark backgrounds, as they don't work well on light ones.