Dialog improvements

![dark-2-3](https://f.cloud.github.com/assets/1119267/1648902/082fe7e8-59cd-11e3-86f0-1fe8a70c0c5b.png) ![dark-4](https://f.cloud.github.com/assets/1119267/1648903/0837d82c-59cd-11e3-948d-f6d4340919de.png) ![light-2-3](https://f.cloud.github.com/assets/1119267/1648904/0838fe6e-59cd-11e3-90fe-ec4650a67386.png) ![light-4](https://f.cloud.github.com/assets/1119267/1648901/07b080e8-59cd-11e3-970f-a8f61dd8598f.png)