HTML5 has been given a makeover with a new dedicated logo from it's parent organization, the W3C. The new logo (to me) looks like something a superhero would put on their chest.
W3C has talked about the logo, saying "It stands strong and true, resilient and universal as the markup you write. It shines as bright and as bold as the forward-thinking, dedicated web developers you are. It's the standard's standard, a pennant for progress. And it certainly doesn't use tables for layout."