sizeDp() function does't work.
```
var drawable = IconicsDrawable(this,Pixeden7Stroke.Icon.pe7_7s_add_user).sizeDp(5)
img.background = drawable
```
```
<ImageView
    android:id="@+id/img"
    android:layout_width="100dp"
    android:layout_height="100dp" />
```

it does't work for me. the img is so big that full the imageview