Oneiric Ocelot's default display manager, LightDM, has "suffered" a new redesign weeks ago, receiving an Unity-like theming.
Just now, new updates have landed in Oneiric adding more fancy-ness and polish to LightDM (Unity Greeter), transforming the login screen into an enjoyable experience that clearly aims towards consistency (same colors, textures, transparency, icons as the overall Unity look and feel).
What is new in LightDM 0.9.3?