Mg browser

![image](https://cloud.githubusercontent.com/assets/2095625/3411081/72951da0-fdf2-11e3-8469-f4a5a5918279.png)

![image](https://cloud.githubusercontent.com/assets/2095625/3411083/7d238bee-fdf2-11e3-932e-ee7ec2fb0d2c.png)

Good question! I guess I mostly use `darken`, `lighten`, `adjust-hue` and the other sass rules, that makes me tend to use `transparentize`.