First draft of Onboarding page

lib/core/const/color_constants.dart

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+import 'dart:ui';
+
+class ColorConstants {
+  static const textColor = Color(0xFF1F2022);
+  static const primaryColor = Color(0xFF6358E1);
+  static const textBlack = Color(0xFF1F2022);
+  static const white = Color(0xFFFFFFFF);
+  static const grey = Color(0xFFB6BDC6);
+  static const loadingBlack = Color(0x80000000);
+
+  static const textFieldBackground = Color(0xFFFBFCFF);
+  static const textFieldBorder = Color (0xFFB9BBC5);
+  static const disabledColor = Color(0xFFE1E1E5);
+  static const errorColor = Color (0xFFF25252);
+  static const homeBackgroundColor = Color.fromRGBO(252, 252, 252, 1);
+  static const textGrey = Color(0xFF8F98A3);
+  static const cardioColor = Color(0xFFFCB74F);
+  static const armsColor = Color(0xFF5C9BA4);
+}

lib/core/const/data_constants.dart

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+import 'package:tutorialtest/core/const/path_constants.dart';
+import 'package:tutorialtest/core/const/text_constants.dart';
+
+import '../../screens/onboarding/widget/onboarding_tile.dart';
+
+class DataConstants {
+  // Onboarding
+  static final onboardingTiles = [
+    OnboardingTile(
+        title: TextConstants.onboarding1Title,
+        mainText: TextConstants.onboardingDescription,
+        imagePath: PathConstants.onboarding1
+    ),
+    OnboardingTile(
+        title: TextConstants.onboardingTitle,
+        mainText: TextConstants.onboardingDescription,
+        imagePath: PathConstants.onboarding2
+    ),
+    OnboardingTile(
+        title: TextConstants.onboarding3Title,
+        mainText: TextConstants.onboarding3Description,
+        imagePath: PathConstants.onboarding3
+    )
+  ];
+}

lib/core/const/path_constants.dart

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+class PathConstants{
+  // Onboarding
+  static const String onboarding1 = 'assets/images/onboarding/onboarding.png';
+  static const String onboarding2 = 'assets/images/onboarding/onboarding_2.png';
+  static const String onboarding3 = 'assets/images/onboarding/onboarding_3.png';
+  // Auth
+  static const String eye = 'assets/images/auth/eye_icon.png';
+  // Tabbar
+  static const String home = 'assets/icons/home/home_icon.png';
+  static const String workouts = 'assets/icons/home/workouts_icon.png';
+  static const String settings = 'assets/icons/home/settings_icon.png';
+  // Home
+  static const String profile = 'assets/images/home/profile.png';
+  static const String finished = 'assets/images/home/finished.png';
+  static const String inProgress = 'assets/icons/home/inProgress.png';
+  static const String timeSent = 'assets/icons/home/time.png';
+  static const String cardio = 'assets/images/home/cardio.png';
+  static const String arms = 'assets/images/home/arms.png';
+  static const String progress = 'assets/icons/home/progress.png';
+}

lib/core/const/text_constants.dart

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+class TextConstants {
+  // Onboarding
+  static const String onboarding1Title = "Workout anywhere";
+  static const String onboardingTitle = "Learn techniques";
+  static const String onboarding3Title = "Stay strong & healthy";
+  static const String onboardingDescription =
+  "You can do your workout at home without any equipment, outside or at the gym.";
+  static const String onboarding2Description =
+      "Our workout programs are made by professionals.";
+  static const String onboarding3Description =
+      "We want you to fully enjoy the program and stay healthy and positive.";
+}