Improving interface for accessibility Increase Contrast - Closes #34

reminders-menu-bar/Resources/Colors.xcassets/borderContrast.colorset/Contents.json

@@ -0,0 +1,38 @@
+{
+  "colors" : [
+    {
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "83",
+          "green" : "83",
+          "red" : "83"
+        }
+      },
+      "idiom" : "universal"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        }
+      ],
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "180",
+          "green" : "180",
+          "red" : "180"
+        }
+      },
+      "idiom" : "universal"
+    }
+  ],
+  "info" : {
+    "author" : "xcode",
+    "version" : 1
+  }
+}

reminders-menu-bar/Resources/Colors.xcassets/textFieldBackground.colorset/Contents.json

@@ -29,6 +29,46 @@
         }
       },
       "idiom" : "universal"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "contrast",
+          "value" : "high"
+        }
+      ],
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "0xED",
+          "green" : "0xED",
+          "red" : "0xED"
+        }
+      },
+      "idiom" : "universal"
+    },
+    {
+      "appearances" : [
+        {
+          "appearance" : "luminosity",
+          "value" : "dark"
+        },
+        {
+          "appearance" : "contrast",
+          "value" : "high"
+        }
+      ],
+      "color" : {
+        "color-space" : "srgb",
+        "components" : {
+          "alpha" : "1.000",
+          "blue" : "51",
+          "green" : "51",
+          "red" : "51"
+        }
+      },
+      "idiom" : "universal"
     }
   ],
   "info" : {

reminders-menu-bar/Resources/RmbColorKey.swift

@@ -4,6 +4,7 @@ enum RmbColorKey: String {
     case buttonHover
     case backgroundTheme
     case textFieldBackground // textFieldBackgroundTransparent
+    case borderContrast
 
     private var transparencyPostfix: String { "Transparent" }
 

reminders-menu-bar/Views/FormNewReminderView.swift

@@ -20,6 +20,7 @@ struct FormNewReminderView: View {
                 .background(Color.rmbColor(for: .textFieldBackground, and: colorSchemeContrast))
                 .cornerRadius(8)
                 .textFieldStyle(PlainTextFieldStyle())
+                .modifier(ContrastBorderOverlay())
                 .overlay(
                     Image(systemName: "plus.circle.fill")
                         .frame(maxWidth: .infinity, maxHeight: .infinity, alignment: .topLeading)
@@ -62,6 +63,7 @@ struct FormNewReminderView: View {
                 .padding(.trailing, 2)
                 .background(Color(userPreferences.calendarForSaving?.color ?? .white))
                 .cornerRadius(8)
+                .modifier(ContrastBorderOverlay())
                 .help(rmbLocalized(.newReminderCalendarSelectionToSaveHelp))
             }
         }
@@ -240,6 +242,22 @@ func reminderRemindDateTimeOptionView(date: Binding<Date>,
     }
 }
 
+struct ContrastBorderOverlay: ViewModifier {
+    @Environment(\.colorSchemeContrast) private var colorSchemeContrast
+    private var isEnabled: Bool { colorSchemeContrast == .increased }
+
+    func body(content: Content) -> some View {
+        return content
+            .overlay(
+                isEnabled
+                ? RoundedRectangle(cornerRadius: 8)
+                    .strokeBorder(style: StrokeStyle(lineWidth: 1))
+                    .foregroundColor(Color.rmbColor(for: .borderContrast, and: colorSchemeContrast))
+                : nil
+            )
+    }
+}
+
 struct RemindDateTimeCapsuleStyle: ViewModifier {
     func body(content: Content) -> some View {
         return content