Rename the nodes 'Length' -> 'Magnitude', 'Flatten Path' -> 'Combine Paths', 'Vec2 Value' -> 'Combine Vec2', and add a new 'Vec2 Value' node (#4349)

* Rename the node 'Length' -> 'Magnitude'

* Rename the node 'Flatten Path' -> 'Combine Paths'

* Replace the node 'Vec2 Value' with 'Combine Vec2' and add a new 'Vec2 Value' that's actually a vec2

* Update demo artwork

Author: Keavon

demo-artwork/changing-seasons.graphite

@@ -433,17 +433,17 @@ impl<'a> ModifyInputsContext<'a> {
 			return None;
 		};
 
-		// If inserting a 'Path' node, insert a 'Flatten Path' node if the type is `Graphic`.
+		// If inserting a 'Path' node, insert a 'Combine Paths' node if the type is `Graphic`.
 		// TODO: Allow the 'Path' node to operate on `List` data by utilizing the reference (index or ID?) for each item.
 		if node_definition.identifier == "Path" {
 			let layer_input_type = self.network_interface.input_type(&InputConnector::node(output_layer.to_node(), 1), &[]);
 			if layer_input_type.compiled_element_name().as_deref() == Some("Graphic") {
-				let Some(flatten_path_definition) = resolve_proto_node_type(graphene_std::vector_nodes::flatten_path::IDENTIFIER) else {
-					log::error!("Flatten Path does not exist in ModifyInputsContext::existing_node_id");
+				let Some(combine_paths_definition) = resolve_proto_node_type(graphene_std::vector_nodes::combine_paths::IDENTIFIER) else {
+					log::error!("Combine Paths does not exist in ModifyInputsContext::existing_node_id");
 					return None;
 				};
 				let node_id = NodeId::new();
-				self.network_interface.insert_node(node_id, flatten_path_definition.default_node_template(), &[]);
+				self.network_interface.insert_node(node_id, combine_paths_definition.default_node_template(), &[]);
 				self.network_interface.move_node_to_chain_start(&node_id, output_layer, &[], self.import);
 			}
 		}

demo-artwork/isometric-fountain.graphite

@@ -806,9 +806,9 @@ fn document_node_definitions() -> HashMap<DefinitionIdentifier, DocumentNodeDefi
 								inputs: vec![NodeInput::node(NodeId(4), 0), NodeInput::node(NodeId(3), 0)],
 								..Default::default()
 							},
-							// 6: Flatten Path
+							// 6: Combine Paths
 							DocumentNode {
-								implementation: DocumentNodeImplementation::ProtoNode(vector::flatten_path::IDENTIFIER),
+								implementation: DocumentNodeImplementation::ProtoNode(vector::combine_paths::IDENTIFIER),
 								inputs: vec![NodeInput::node(NodeId(5), 0)],
 								..Default::default()
 							},
@@ -883,7 +883,7 @@ fn document_node_definitions() -> HashMap<DefinitionIdentifier, DocumentNodeDefi
 									},
 									..Default::default()
 								},
-								// 6: Flatten Path
+								// 6: Combine Paths
 								DocumentNodeMetadata {
 									persistent_metadata: DocumentNodePersistentMetadata {
 										node_type_metadata: NodeTypePersistentMetadata::node(IVec2::new(35, 0)),
@@ -1239,7 +1239,7 @@ fn document_node_definitions() -> HashMap<DefinitionIdentifier, DocumentNodeDefi
 			description: Cow::Borrowed(
 				"Decomposes the X and Y components of a vec2.\n\
 				\n\
-				The inverse of this node is \"Vec2 Value\", which can have either or both its X and Y parameters exposed as graph inputs.",
+				The inverse of this node is **Combine Vec2**, which composes a vec2 from its X and Y components.",
 			),
 			properties: None,
 		},