Colour is used quite extensively in many games to notify all kinds of things, most usually good, hostile, neutral characters in RPG, MMO and other games that require fighting. World of Warcraft is one of those games. However, it's a fact that some people aren't easily able to tell between some colours due to having been born with one of the types of colourblindness that has an effect on vision. Because of that, Blizzard's next patch for their long-running MMO will contain some new options to help those with colour vision issues be able to determine things that are usually shown through use of colour.
The patch will contain three new sets of filters in an Accessibility menu, made to help players with protanopia, deuteranopia, and tritanopia. Each set of adjustments will be available via a dropdown selector and will have a 'strength' slider so you can tailor the filters, with the right removing more problematic colour wavelengths as it goes further to the right hand side.
Also, the rarity of items that is usually denoted by colour can be switched to instead show this information in text instead through the accessibility options, so 'Rare' and 'Epic' as well as the other rarities will actually show up in a form that is easier to see for those with colour blindness.
![Image](http://www.sanitarium.fm/wp-content/uploads/2015/02/wow-colour-blind-options_01.png)