增加渐变背景切换

Constant/BGStyle.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+/// <summary>
+/// 背景风格
+/// </summary>
+namespace GeekDesk.Constant
+{
+    public enum BGStyle
+    {
+        ImgBac = 1,  //图片
+        GradientBac = 2  //渐变色
+    }
+}