Add the option to select the user interface color palette. Issue #1900

iOS/Settings/ColorPaletteTableViewController.swift

@@ -0,0 +1,42 @@
+//
+//  ColorPaletteTableViewController.swift
+//  NetNewsWire-iOS
+//
+//  Created by Maurice Parker on 3/15/20.
+//  Copyright © 2020 Ranchero Software. All rights reserved.
+//
+
+import UIKit
+
+class ColorPaletteTableViewController: UITableViewController {
+
+    // MARK: - Table view data source
+
+    override func numberOfSections(in tableView: UITableView) -> Int {
+        return 1
+    }
+
+    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
+		return UserInterfaceColorPalette.allCases.count
+    }
+
+    override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
+        let cell = tableView.dequeueReusableCell(withIdentifier: "Cell", for: indexPath)
+		let rowColorPalette = UserInterfaceColorPalette.allCases[indexPath.row]
+		cell.textLabel?.text = String(describing: rowColorPalette)
+		if rowColorPalette == AppDefaults.userInterfaceColorPalette {
+			cell.accessoryType = .checkmark
+		} else {
+			cell.accessoryType = .none
+		}
+        return cell
+    }
+
+	override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
+		if let colorPalette = UserInterfaceColorPalette(rawValue: indexPath.row) {
+			AppDefaults.userInterfaceColorPalette = colorPalette
+		}
+		navigationController?.popViewController(animated: true)
+	}
+
+}