| ⇢ | A | Marker_Label_Model added | 
| ⇢ | A | Marker_Label_Model::color() added | |
| ⇢ | A | Marker_Label_Model::font_family() added | |
| ⇢ | A | Marker_Label_Model::font_size() added | |
| ⇢ | A | Marker_Label_Model::font_weight() added | |
| ⇢ | A | Marker_Label_Model::text() added | |
| ⇢ | A | Marker_Label_Model::json_object() added | |
| ⇢ | A | Marker_Label_Model::options() added | |
| A | ↛ | Marker::make_options() removed |