add diamond

Author: tspython

src/drawing.rs

@@ -4,6 +4,7 @@ pub enum Tool {
     Line,
     Rectangle,
     Circle,
+    Diamond,
     Arrow,
     Text,
     Eraser,
@@ -47,6 +48,14 @@ pub enum DrawingElement {
         stroke_width: f32,
         rough_style: Option<crate::rough::RoughOptions>,
     },
+    Diamond {
+        position: [f32; 2],
+        size: [f32; 2],
+        color: [f32; 4],
+        fill: bool,
+        stroke_width: f32,
+        rough_style: Option<crate::rough::RoughOptions>,
+    },
     Arrow {
         start: [f32; 2],
         end: [f32; 2],