code normalization by JoyJ

DataManager.cs

@@ -144,9 +144,9 @@ namespace ImgGen
             for (int i = 1; i <= 9; i++)
             {
                 if (i < 9)
-                    bLinkNums[i - 1] = new Bitmap("./textures/link_" + i + ".png");
+                    bLinkNums[i - 1] = new Bitmap($"./textures/link_{i}.png");
                 if (i == 5) continue;
-                bLinkMarkers[i - 1] = new Bitmap("./textures/link_marker_on_" + i + ".png");
+                bLinkMarkers[i - 1] = new Bitmap($"./textures/link_marker_on_{i}.png");
             }
         }
 

Program.cs

@@ -39,9 +39,7 @@ namespace ImgGen
             List<string> files = new List<string>();
             files.AddRange(Directory.GetFiles("./pico", "*.png"));
             files.AddRange(Directory.GetFiles("./pico", "*.jpg"));
-            bool generateLarge = System.Configuration.ConfigurationManager.AppSettings["GenerateLarge"] == "False" ? false : true; // true if AppSettings null
-            bool generateSmall = System.Configuration.ConfigurationManager.AppSettings["GenerateSmall"] == "True" ? true : false;
-            bool generateThumb = System.Configuration.ConfigurationManager.AppSettings["GenerateThumb"] == "True" ? true : false;
+            bool generateSmall = System.Configuration.ConfigurationManager.AppSettings["GenerateSmall"] == "True";
             if (generateLarge)
                 Directory.CreateDirectory("./picn");
             if (generateSmall)