how to set Skycons's strokewidth in android

I am used skycons's in my application but i am can't able to set it's stroke-width so anybody helping me to sort out my problem..

skycons referance

 <com.thbs.skycons.library.SunView
                    android:id="@+id/SunView"
                    android:layout_width="120dp"
                    android:layout_height="120dp"
                    app:isStatic = "false"
                    app:strokeColor = "#ffffff"
                    app:bgColor = "#00ffffff"
                    />