Add alternate toolbar icon images for Dark Mode

CotEditor/Images.xcassets/Toolbar Icons/Document/ColorCode.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "ColorCode.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "ColorCode-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {

CotEditor/Images.xcassets/Toolbar Icons/Document/Comment.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "Comment.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "Comment-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {

CotEditor/Images.xcassets/Toolbar Icons/Document/PageGuide_Off.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "PageGuide_Off.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "PageGuide_Off-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {

CotEditor/Images.xcassets/Toolbar Icons/Document/PageGuide_On.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "PageGuide_On.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "PageGuide_On-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {

CotEditor/Images.xcassets/Toolbar Icons/Document/ShiftLeft.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "ShiftLeft.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "ShiftLeft-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {

CotEditor/Images.xcassets/Toolbar Icons/Document/ShiftRight.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "ShiftRight.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "ShiftRight-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {

CotEditor/Images.xcassets/Toolbar Icons/Document/SpellCheck.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "SpellCheck.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "SpellCheck-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {

CotEditor/Images.xcassets/Toolbar Icons/Document/TabStyle_Off.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "TabStyle_Off.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "TabStyle_Off-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {

CotEditor/Images.xcassets/Toolbar Icons/Document/TabStyle_On.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "TabStyle_On.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "TabStyle_On-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {

CotEditor/Images.xcassets/Toolbar Icons/Document/WrapLines_Off.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "WrapLines_Off.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "WrapLines_Off-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {

CotEditor/Images.xcassets/Toolbar Icons/Document/WrapLines_On.imageset/Contents.json

@@ -3,6 +3,16 @@
     {
       "idiom" : "universal",
       "filename" : "WrapLines_On.pdf"
+    },
+    {
+      "idiom" : "universal",
+      "filename" : "WrapLines_On-1.pdf",
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ]
     }
   ],
   "info" : {