added show-top / -bottom options to participants

src/participant.typ

@@ -21,7 +21,9 @@
   invisible: false,
   shape: "participant",
   color: rgb("#E2E2F0"),
-  custom-image: none
+  custom-image: none,
+  show-bottom: true,
+  show-top: true,
 ) = {
   return ((
     type: "par",
@@ -31,7 +33,9 @@
     invisible: invisible,
     shape: shape,
     color: color,
-    custom-image: custom-image
+    custom-image: custom-image,
+    show-bottom: show-bottom,
+    show-top: show-top
   ),)
 }
 

src/renderer.typ

@@ -218,7 +218,7 @@
   
   // Draw participants (start)
   for p in participants {
-    if p.from-start and not p.invisible {
+    if p.from-start and not p.invisible and p.show-top {
       shapes += draw-par(p)
     }
   }
@@ -417,7 +417,9 @@
       }
 
       // Draw participants (end)
-      draw-par(p, y: y, bottom: true)
+      if p.show-bottom {
+        draw-par(p, y: y, bottom: true)
+      }
     }
   })