Background Doesn't Send Across Activities

[rahulk64]

Get this error when running when choosing a background:

W/Bundle: Key background expected String but value was a java.lang.Integer. The default value was returned.
W/Bundle: Attempt to cast generated internal exception:
java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
at android.os.BaseBundle.getString(BaseBundle.java:1121)
at com.solunaire.vectrize.FinishedPreviewActivity$2.run(FinishedPreviewActivity.java:126)
at java.lang.Thread.run(Thread.java:764)

Effectively, the background feature does not work