fix bug with text color and changing themes

Shared/views/CustomizeView/SubViews/ThemePickerView.swift

@@ -8,6 +8,8 @@
 import SwiftUI
 
 struct ThemePickerView: View {
+    @Environment(\.colorScheme) var colorScheme
+    
     @AppStorage(UserDefaultsStore.Keys.theme.rawValue, store: GroupUserDefaults.groupDefaults) private var theme: Theme = .system
     @AppStorage(UserDefaultsStore.Keys.textColor.rawValue, store: GroupUserDefaults.groupDefaults) private var textColor: Color = DefaultTextColor.textColor
     
@@ -19,8 +21,8 @@ struct ThemePickerView: View {
                     Spacer()
                     ForEach(Theme.allCases, id:\.rawValue) { aTheme in
                         Button(action: {
-                            textColor = aTheme.currentTheme.labelColor
                             theme = aTheme
+                            changeTextColor(forTheme: aTheme)
                             EventLogger.log(event: "change_theme_id", withData: ["id": aTheme.rawValue])
                         }, label: {
                             VStack {
@@ -51,6 +53,28 @@ struct ThemePickerView: View {
         .fixedSize(horizontal: false, vertical: true)
         .cornerRadius(Constants.viewsCornerRaidus, corners: [.topLeft, .topRight, .bottomLeft, .bottomRight])
     }
+    
+    private func changeTextColor(forTheme theme: Theme) {
+        if [Theme.iFeel, Theme.system].contains(theme) {
+            let currentSystemScheme = UITraitCollection.current.userInterfaceStyle
+            switch currentSystemScheme {
+            case .unspecified:
+                textColor = .black
+            case .light:
+                textColor = .black
+            case .dark:
+                textColor = .white
+            @unknown default:
+                textColor = .black
+            }
+        }
+        if theme == Theme.dark {
+            textColor = .white
+        }
+        if theme == Theme.light {
+            textColor = .black
+        }
+    }
 }
 
 struct ThemePickerView_Previews: PreviewProvider {