--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/GeoQuiz/Helpers/Extensions.swift	Wed Nov 09 10:30:01 2022 +0100
@@ -0,0 +1,95 @@
+//
+//  Extensions.swift
+//  GeoQuiz
+//
+//  Created by Dennis Concepción Martín on 7/11/22.
+//
+
+import Foundation
+import SwiftUI
+
+extension ShapeStyle where Self == Gradient {
+    static var main: Gradient {
+        Gradient(colors: [Color("MayaBlue"), Color("RoyalLightBlue")])
+    }
+    
+    static var secondary: Gradient {
+        Gradient(colors: [Color("AtomicTangerine"), Color("ChinaPink")])
+    }
+    
+    static var tertiary: Gradient {
+        Gradient(colors: [Color("PinkLavender"), Color("BlueBell")])
+    }
+    
+    static var quaternary: Gradient {
+        Gradient(colors: [Color("MaizeCrayola"), Color("MiddleRed")])
+    }
+}
+
+extension ShapeStyle where Self == Color {
+    static var atomicTangerine: Color {
+        Color("AtomicTangerine")
+    }
+    
+    static var blueBell: Color {
+        Color("BlueBell")
+    }
+    
+    static var chinaPink: Color {
+        Color("ChinaPink")
+    }
+    
+    static var maizeCrayola: Color {
+        Color("MaizeCrayola")
+    }
+    
+    static var mayaBlue: Color {
+        Color("MayaBlue")
+    }
+    
+    static var middleRed: Color {
+        Color("MiddleRed")
+    }
+    
+    static var pinkLavender: Color {
+        Color("PinkLavender")
+    }
+    
+    static var royalLightBlue: Color {
+        Color("RoyalLightBlue")
+    }
+}
+
+extension Formatter {
+    static let withSeparator: NumberFormatter = {
+        let formatter = NumberFormatter()
+        formatter.numberStyle = .decimal
+        return formatter
+    }()
+}
+
+extension Int {
+    var formattedWithSeparator: String {
+        return Formatter.withSeparator.string(for: self) ?? ""
+    }
+}
+
+extension Bundle {
+    func decode<T: Codable>(_ file: String) -> T {
+        guard let url = self.url(forResource: file, withExtension: nil) else {
+            fatalError("Failed to locate \(file) in bundle.")
+        }
+
+        guard let data = try? Data(contentsOf: url) else {
+            fatalError("Failed to load \(file) from bundle.")
+        }
+
+        let decoder = JSONDecoder()
+
+        guard let loaded = try? decoder.decode(T.self, from: data) else {
+            fatalError("Failed to decode \(file) from bundle.")
+        }
+
+        return loaded
+    }
+}