1 files changed, 12 insertions, 0 deletions
diff --git a/server/protocol/src/book.rs b/server/protocol/src/book.rs
index 7c529f22..1654e014 100644
--- a/server/protocol/src/book.rs
+++ b/server/protocol/src/book.rs
@@ -69,8 +69,20 @@ pub struct DiagramEdge {
     pub src: usize,
     pub dst: usize,
     pub label: Option<Message>,
+    pub style: EdgeStyle,
 }
 
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub enum EdgeStyle {
+    Regular,
+    ProcessPassive,
+}
+
+impl EdgeStyle {
+    pub fn is_regular(&self) -> bool {
+        matches!(self, Self::Regular)
+    }
+}
 impl NodeStyle {
     pub fn is_procuct(&self) -> bool {
         matches!(