There are five types of runes, each representing a general type of bonus, the names of which have changed repeatedly during game development. The final name change was revealed in May 2010, when [[Bashiok]] [http://diablo.incgamers.com/blog/comments/new-skill-rune-names-revealed/] revealed the names as having changed to [[Crimson]], [[Indigo]], [[Obsidian]], [[Golden]], and [[Alabaster]]. Considerable, but not total, changes to their bonuses came with that name change.