Opera 12 beta is officially out , bringing many new improvement and features to Opera fans, as well as for Opera newcomers who’d like to give the browser a first try. According to Opera Software, 250 million people already use Opera web browsers for computers, mobile phones, TVs and other connected devices and with this new iteration they are hoping to increase that number even more. Among the most notable new feature in Opera 12 beta, codenamed Wahoo, is the addition of browser themes . Users can now choose out of a growing list of colorful themes to create their own customized look for Opera. Designers can also add their own themes to the list. Aside from looks, there are also some performance enhancements, the most prominent of those is a separate process for plugins. Plugin crashes which used to take the entire browser with them were obviously bothersome for users, so Opera decided to give these plugins their very own process. Now when a plugin crashes, the brow...