1.修改Esign Signature图标。

Ants Contract/Granite Expo eSign/Granite Expo eSign/Assets.xcassets/clear.imageset/Contents.json

@@ -2,17 +2,17 @@
   "images" : [
     {
       "idiom" : "universal",
-      "filename" : "appicon.png",
+      "filename" : "clear.png",
       "scale" : "1x"
     },
     {
       "idiom" : "universal",
-      "filename" : "appicon-1.png",
+      "filename" : "clear@2x.png",
       "scale" : "2x"
     },
     {
       "idiom" : "universal",
-      "filename" : "appicon-2.png",
+      "filename" : "clear@3x.png",
       "scale" : "3x"
     }
   ],

Ants Contract/Granite Expo eSign/Granite Expo eSign/Assets.xcassets/save.imageset/Contents.json

@@ -2,17 +2,17 @@
   "images" : [
     {
       "idiom" : "universal",
-      "filename" : "appicon.png",
+      "filename" : "save.png",
       "scale" : "1x"
     },
     {
       "idiom" : "universal",
-      "filename" : "appicon-1.png",
+      "filename" : "save@2x.png",
       "scale" : "2x"
     },
     {
       "idiom" : "universal",
-      "filename" : "appicon-2.png",
+      "filename" : "save@3x.png",
       "scale" : "3x"
     }
   ],

Ants Contract/Granite Expo eSign/Granite Expo eSign/Assets.xcassets/signature_setting.imageset/Contents.json

@@ -0,0 +1,23 @@
+{
+  "images" : [
+    {
+      "idiom" : "universal",
+      "filename" : "signature_setting.png",
+      "scale" : "1x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "signature_setting@2x.png",
+      "scale" : "2x"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "signature_setting@3x.png",
+      "scale" : "3x"
+    }
+  ],
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}