Theme the pickers

You can change the strings be overwriting below resources in your project.

    <string name="media_picker_select_from">Select From:</string>
    <string name="media_picker_camera">Camera</string>
    <string name="media_picker_gallery">Gallery</string>
    <string name="media_picker_ok">Ok</string>
    <string name="media_picker_cancel">Cancel</string>
    <string name="media_picker_some_permission_is_denied">Some Permission is Denied</string>
    <string name="media_picker_you_need_to_grant_access_to">You need to grant access to</string>
    <string name="media_picker_read_Write_external_storage"><![CDATA[Read & Write External Storage]]></string>