feat(gui): 更新UI元素样式和布局

调整按钮、进度条和背景的样式及位置
更新精灵图集引用和尺寸配置
修改进度条模式和填充颜色

assets/resources/gui/element/bar.prefab

@@ -179,7 +179,7 @@
       "a": 255
     },
     "_spriteFrame": {
-      "__uuid__": "ab41374b-398e-499c-8501-75493c8ff83e@c4cca",
+      "__uuid__": "666aafac-e2c4-4580-91da-70192c286746@85a4a",
       "__expectedType__": "cc.SpriteFrame"
     },
     "_type": 1,
@@ -194,7 +194,10 @@
     "_fillRange": 0,
     "_isTrimmedMode": true,
     "_useGrayscale": false,
-    "_atlas": null,
+    "_atlas": {
+      "__uuid__": "666aafac-e2c4-4580-91da-70192c286746",
+      "__expectedType__": "cc.SpriteAtlas"
+    },
     "_id": ""
   },
   {
@@ -276,7 +279,7 @@
     },
     "_lpos": {
       "__type__": "cc.Vec3",
-      "x": -150,
+      "x": -147,
       "y": 0,
       "z": 0
     },
@@ -317,8 +320,8 @@
     },
     "_contentSize": {
       "__type__": "cc.Size",
-      "width": 300,
-      "height": 15
+      "width": 294,
+      "height": 9
     },
     "_anchorPoint": {
       "__type__": "cc.Vec2",
@@ -354,10 +357,10 @@
       "a": 255
     },
     "_spriteFrame": {
-      "__uuid__": "ab41374b-398e-499c-8501-75493c8ff83e@439bb",
+      "__uuid__": "666aafac-e2c4-4580-91da-70192c286746@c77b0",
       "__expectedType__": "cc.SpriteFrame"
     },
-    "_type": 3,
+    "_type": 1,
     "_fillType": 0,
     "_sizeMode": 0,
     "_fillCenter": {
@@ -370,7 +373,7 @@
     "_isTrimmedMode": true,
     "_useGrayscale": false,
     "_atlas": {
-      "__uuid__": "ab41374b-398e-499c-8501-75493c8ff83e",
+      "__uuid__": "666aafac-e2c4-4580-91da-70192c286746",
       "__expectedType__": "cc.SpriteAtlas"
     },
     "_id": ""
@@ -393,10 +396,10 @@
     },
     "_alignFlags": 45,
     "_target": null,
-    "_left": 0,
-    "_right": 0,
-    "_top": 0,
-    "_bottom": 0,
+    "_left": 3,
+    "_right": 3,
+    "_top": 3,
+    "_bottom": 3,
     "_horizontalCenter": 0,
     "_verticalCenter": 0,
     "_isAbsLeft": true,
@@ -437,7 +440,7 @@
       "__id__": 1
     },
     "_children": [],
-    "_active": true,
+    "_active": false,
     "_components": [
       {
         "__id__": 19
@@ -694,9 +697,9 @@
     "_barSprite": {
       "__id__": 13
     },
-    "_mode": 2,
-    "_totalLength": 1,
-    "_progress": 0.5,
+    "_mode": 0,
+    "_totalLength": 296,
+    "_progress": 1,
     "_reverse": false,
     "_id": ""
   },