Gutter and Marks

GtkSourceGutter — Gutter object for GtkSourceView
GtkSourceGutterLines — Collected information about visible lines
GtkSourceGutterRenderer — Gutter cell renderer
GtkSourceGutterRendererPixbuf — Renders a pixbuf in the gutter
GtkSourceGutterRendererText — Renders text in the gutter
GtkSourceMark — Mark object for GtkSourceBuffer
GtkSourceMarkAttributes — The source mark attributes object