This fixes the dark mode bug.

* I could not find how to fix the bug with storyboard, so I used
code.

Author: mcode10

macOS Calculator/macOS Calculator/Base.lproj/Main.storyboard

@@ -1,8 +1,8 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" initialViewController="B8D-0N-5wS">
+<document type="com.apple.InterfaceBuilder3.Cocoa.Storyboard.XIB" version="3.0" toolsVersion="14490.70" targetRuntime="MacOSX.Cocoa" propertyAccessControl="none" useAutolayout="YES" initialViewController="B8D-0N-5wS">
     <dependencies>
         <deployment identifier="macosx"/>
-        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14460.31"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.CocoaPlugin" version="14490.70"/>
         <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
     </dependencies>
     <scenes>
@@ -205,7 +205,7 @@
                                         <menuItem title="Show Sidebar" keyEquivalent="s" id="kIP-vf-haE">
                                             <modifierMask key="keyEquivalentModifierMask" control="YES" command="YES"/>
                                             <connections>
-                                                <action selector="toggleSourceList:" target="Ady-hI-5gd" id="iwa-gc-5KM"/>
+                                                <action selector="toggleSidebar:" target="Ady-hI-5gd" id="iwa-gc-5KM"/>
                                             </connections>
                                         </menuItem>
                                         <menuItem title="Enter Full Screen" keyEquivalent="f" id="4J7-dP-txa">
@@ -607,7 +607,11 @@
                                         </textView>
                                     </subviews>
                                 </clipView>
-                                <scroller key="verticalScroller" verticalHuggingPriority="750" horizontal="NO" id="uDS-93-Jy8">
+                                <scroller key="horizontalScroller" hidden="YES" wantsLayer="YES" verticalHuggingPriority="750" horizontal="YES" id="GP5-AW-ICx">
+                                    <rect key="frame" x="-100" y="-100" width="480" height="16"/>
+                                    <autoresizingMask key="autoresizingMask"/>
+                                </scroller>
+                                <scroller key="verticalScroller" wantsLayer="YES" verticalHuggingPriority="750" horizontal="NO" id="uDS-93-Jy8">
                                     <rect key="frame" x="464" y="0.0" width="16" height="270"/>
                                     <autoresizingMask key="autoresizingMask"/>
                                 </scroller>

macOS Calculator/macOS Calculator/Info.plist

@@ -17,9 +17,9 @@
 	<key>CFBundlePackageType</key>
 	<string>APPL</string>
 	<key>CFBundleShortVersionString</key>
-	<string>1.0</string>
+	<string>1.2</string>
 	<key>CFBundleVersion</key>
-	<string>1</string>
+	<string>001</string>
 	<key>LSMinimumSystemVersion</key>
 	<string>$(MACOSX_DEPLOYMENT_TARGET)</string>
 	<key>NSHumanReadableCopyright</key>

macOS Calculator/macOS Calculator/ViewController.swift

@@ -13,13 +13,19 @@ class ViewController: NSViewController {
 var calcEngine = getCalcEngine()
 var answer = ""
 var operation:operatorCases = .add
+var inDarkMode: Bool {
+    let mode = UserDefaults.standard.string(forKey: "AppleInterfaceStyle")
+    return mode == "Dark"
+}
 
     @IBOutlet var display_Panel: NSTextField!
 
     override func viewDidLoad() {
         super.viewDidLoad()
         view.wantsLayer = true
-        view.layer?.backgroundColor = NSColor.white.cgColor
+        if !inDarkMode {
+            view.layer?.backgroundColor = NSColor.white.cgColor
+        }
     }
 
     override var representedObject: Any? {
@@ -40,7 +46,6 @@ var operation:operatorCases = .add
 
     @IBAction func fc(_ sender: NSButton) {
         display_Panel.stringValue = calcEngine.fc(original: Double(display_Panel.stringValue)!)
-        answer = display_Panel.stringValue
     }
 
     @IBAction func cf(_ sender: NSButton) {