diff --git a/src/Canvas.zig b/src/Canvas.zig
index 57c78c2..0033ebb 100644
--- a/src/Canvas.zig
+++ b/src/Canvas.zig
@@ -10,6 +10,7 @@ const Point2_f = @import("models/basic_models.zig").Point2_f;
 const Color = dvui.Color;
 const tools = @import("tools.zig");
 const Toolbar = @import("Toolbar.zig");
+const random_document = @import("random_document.zig");
 const Canvas = @This();
 
 allocator: std.mem.Allocator,
@@ -84,6 +85,11 @@ pub fn exampleReset(self: *Canvas) !void {
     try self.redraw();
 }
 
+pub fn addRandomShapes(self: *Canvas) !void {
+    try random_document.addRandomShapes(self.document, std.crypto.random);
+    self.requestRedraw();
+}
+
 pub fn setZoom(self: *Canvas, value: f32) void {
     self._zoom = @max(value, 0.01);
 }
diff --git a/src/ui/left_panel.zig b/src/ui/left_panel.zig
index 06af973..7735288 100644
--- a/src/ui/left_panel.zig
+++ b/src/ui/left_panel.zig
@@ -101,6 +101,9 @@ pub fn leftPanel(ctx: *WindowContext) void {
                         canvas.requestRedraw();
                     }
                 }
+                if (dvui.button(@src(), "Add random shapes", .{}, .{})) {
+                    canvas.addRandomShapes() catch {};
+                }
             } else {
                 dvui.label(@src(), "No document", .{}, .{});
             }