Overview
Default User Picture Styles allows you to apply image styles on the default user picture by providing you with a file id (a fid). It also enhances the default user picture field that comes bundled with Views by enabling you to apply any desired image style.
This module does the downloading and processing of the default user image that was specified via URL at admin/config/people/accounts and saves the fid in a variable for future reference. It also defines a custom field handler used to enhance the default
user picture field in Views.