update Xcode project

src/app.cpp

@@ -562,7 +562,7 @@ bool App::update_ui_observer(Node *n)
             n->handle_on_screen(false, true);
             n->m_on_screen = true;
         }
-        glm::ivec4 c = glm::vec4(box.x /*- 1*/, (height / zoom - box.y - box.w /*- 1*/), box.z /*+ 2*/, box.w /*+ 2*/) * zoom;
+        glm::ivec4 c = glm::vec4(box.x - 1, (height / zoom - box.y - box.w - 1), box.z + 2, box.w + 2) * zoom;
         glScissor(floorf(c.x + off_x), floorf(c.y + off_y), ceilf(c.z), ceilf(c.w));
         n->draw();
         return true;

src/canvas_layer.cpp

@@ -366,12 +366,16 @@ LayerFrame& LayerFrame::operator=(LayerFrame&& other)
 
 bool LayerFrame::create(int width, int height, int duration /*= 1*/)
 {
+    bool success = true;
     App::I->render_task([&]
     {
         for (int i = 0; i < 6; i++)
         {
             if (!m_rtt[i].create(width, height))
-                return false;
+            {
+                success = false;
+                return;
+            }
             m_rtt[i].bindFramebuffer();
             m_rtt[i].clear();
             m_rtt[i].unbindFramebuffer();
@@ -382,7 +386,7 @@ bool LayerFrame::create(int width, int height, int duration /*= 1*/)
     m_duration = duration;
     w = width;
     h = height;
-    return true;
+    return success;
 }
 
 bool LayerFrame::resize(int width, int height)