Use std.mem.Allocator.dupe instead of @memcpy.

src/models/Property.zig

@@ -51,8 +51,7 @@ pub const Property = struct {
             .points => |slice| .{
                 .data = .{
                     .points = blk: {
-                        const copy = try allocator.alloc(Point2_f, slice.len);
+                        const copy = try allocator.dupe(Point2_f, slice);
-                        @memcpy(copy, slice);
                         break :blk copy;
                     },
                 },

src/models/shape/shape.zig

@@ -15,8 +15,7 @@ fn appendShapeProperties(allocator: std.mem.Allocator, obj: *Object, props: []co
     for (props) |prop| {
         if (prop.data == .points) {
             const pts = prop.data.points;
-            const copy = try allocator.alloc(Point2_f, pts.len);
+            const copy = try allocator.dupe(Point2_f, pts);
-            @memcpy(copy, pts);
             try obj.properties.append(allocator, .{ .data = .{ .points = copy } });
         } else {
             try obj.properties.append(allocator, prop);

src/random_document.zig

@@ -84,8 +84,7 @@ fn randomizeObjectProperties(allocator: std.mem.Allocator, doc_size: *const Size
                 x += randFloat(rng, -40, 80);
                 y += randFloat(rng, -30, 60);
             }
-            const slice = try allocator.alloc(Point2_f, list.items.len);
+            const slice = try allocator.dupe(Point2_f, list.items);
-            @memcpy(slice, list.items);
             try obj.setProperty(allocator, .{ .data = .{ .points = slice } });
         },
     }

src/ui/canvas_view.zig

@@ -676,8 +676,7 @@ fn drawPropertyEditor(canvas: *Canvas, obj: *Document.Object, prop: *const Prope
                 }
 
                 if (changed) {
-                    const slice = canvas.allocator.alloc(Point2_f, list.items.len) catch return;
+                    const slice = canvas.allocator.dupe(Point2_f, list.items) catch return;
-                    @memcpy(slice, list.items);
                     obj.setProperty(canvas.allocator, .{ .data = .{ .points = slice } }) catch {
                         canvas.allocator.free(slice);
                         return;