URL of the Google+ profile, if the Plus Followers gadget is linked to one. Tags: gadget → Plus Followers → string profileUrl By Quốc Bình →
Theme of the Plus Followers display - either DARK or LIGHT. Tags: gadget → Plus Followers → string theme By Quốc Bình →
Language of the Plus Followers display.Note that this is the equivalent of data:blog.locale.language Tags: deprecated → gadget → Plus Followers → string language By Quốc Bình →
Instance ID of the Plus Followers gadget.Note that this can be obtained from data:widget.instanceId instead. Tags: deprecated → gadget → Plus Followers → string widgetInstanceId By Quốc Bình →