Улучшен дизайн кнопок SpinBox: добавлены современные стили, улучшена визуальная обратная связь, добавлены SVG иконки, оптимизированы размеры и отступы, улучшена читаемость значени

venv/Lib/site-packages/PyQt6/Qt6/qml/QtQuick3D/designer/source/custom_material_default_shader.frag

@@ -0,0 +1,3 @@
+void MAIN() {
+    BASE_COLOR = vec4(0.29, 0.93, 0.27, 1.0);
+}

venv/Lib/site-packages/PyQt6/Qt6/qml/QtQuick3D/designer/source/effect_default_shader.frag

@@ -0,0 +1,4 @@
+void MAIN() {
+    vec4 mainCol = texture(INPUT, INPUT_UV);
+    FRAGCOLOR = vec4(1.0 - mainCol.r, 1.0 - mainCol.g, 1.0 - mainCol.b, mainCol.a);
+}

venv/Lib/site-packages/PyQt6/Qt6/qml/QtQuick3D/designer/source/effect_template.qml

@@ -0,0 +1,20 @@
+// Copyright (C) 2020 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+import QtQuick
+import QtQuick3D
+
+Effect {
+    passes: renderPass
+
+    Pass {
+        id: renderPass
+        shaders: [fragShader]
+    }
+
+    Shader {
+        id: fragShader
+        stage: Shader.Fragment
+        shader: "effect_default_shader.frag"
+    }
+}

venv/Lib/site-packages/PyQt6/Qt6/qml/QtQuick3D/designer/source/view3D_template.qml

@@ -0,0 +1,38 @@
+// Copyright (C) 2019 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
+
+import QtQuick
+import QtQuick3D
+
+View3D {
+    width: 400
+    height: 400
+    environment: sceneEnvironment
+
+    SceneEnvironment {
+        id: sceneEnvironment
+        antialiasingMode: SceneEnvironment.MSAA
+        antialiasingQuality: SceneEnvironment.High
+    }
+
+    Node {
+        id: scene
+
+        DirectionalLight {
+            id: directionalLight
+        }
+
+        PerspectiveCamera {
+            id: sceneCamera
+            z: 350
+        }
+
+        Model {
+            id: cubeModel
+            eulerRotation.x: 30
+            eulerRotation.y: 45
+
+            source: "#Cube"
+        }
+    }
+}