MahApps/MahApps.Metro — pull request #786 by thoemmi (2013-11-08 08:32:28+00:00)
Title: Remove margins from MetroFlatButton style

I don't think controls should have set a margin in their style.
In one of my dialogs I used this code to increase the distance between the buttons:
```XML

```
and got this result:
![image](https://f.cloud.github.com/assets/73690/1499048/8d285dea-484d-11e3-9ec0-798fc45c4bc1.png)

I'm a strong supporter of the [principle of least astonishment](http://en.wikipedia.org/wiki/Principle_of_least_astonishment), so when I try to set a horizontal margin, I was surprised that the height of the button was changed too. Instead I had to figure out the default margins and set the margin to `"8 3 3 3"` to get the correct result. :astonished: