feature: change app colors to the standard on flutter

lib/app/constants/app_constants.dart

@@ -15,6 +15,9 @@ class AppConstants {
   static int personId = 0;
   static const bool debugRequest = false;
 
+  static Uri myGithubPage = Uri.parse('https://github.com/dherediat97');
+
+  //PREFERENCES KEYS
   static const languageKey = 'languageCode';
   static const themeModeKey = 'themeMode';
 }

lib/app/constants/app_fonts.dart

@@ -1,13 +1,81 @@
-import 'package:film_flu/gen/fonts.gen.dart';
+import 'package:flutter/material.dart';
+import 'package:google_fonts/google_fonts.dart';
 
 class AppFonts {
-  static String primaryFont = FontFamily.ysabeauInfant;
-  static String secondaryFont = FontFamily.lilitaOne;
-  static String tertiaryFont = FontFamily.shadowsIntoLight;
+  static String primaryFont = 'Ysabeau';
+  static String secondaryFont = 'LilitaOne';
+  static String tertiaryFont = 'Shadows Into Light';
 
   const AppFonts(
     primaryFont,
     secondaryFont,
     tertiaryFont,
   );
 }
+
+TextTheme createTextTheme(
+    BuildContext context, String bodyFontString, String displayFontString) {
+  TextTheme baseTextTheme = Theme.of(context).textTheme;
+
+  TextTheme titleTextTheme =
+      GoogleFonts.getTextTheme(bodyFontString, baseTextTheme);
+
+  TextTheme bodyTextTheme =
+      GoogleFonts.getTextTheme(bodyFontString, baseTextTheme);
+
+  TextTheme displayTextTheme =
+      GoogleFonts.getTextTheme(displayFontString, baseTextTheme);
+
+  TextTheme textTheme = displayTextTheme.copyWith(
+    displayLarge: displayTextTheme.displayLarge?.copyWith(
+      fontSize: 22,
+      fontWeight: FontWeight.bold,
+      color: Theme.of(context).colorScheme.primary,
+    ),
+    displayMedium: displayTextTheme.displayMedium?.copyWith(
+      fontSize: 15,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+    displaySmall: displayTextTheme.displaySmall?.copyWith(
+      fontSize: 12,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+    bodyLarge: bodyTextTheme.bodyLarge?.copyWith(
+      fontSize: 24,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+    bodyMedium: bodyTextTheme.bodyMedium?.copyWith(
+      fontSize: 15,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+    bodySmall: bodyTextTheme.bodySmall?.copyWith(
+      fontSize: 15,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+    labelLarge: bodyTextTheme.labelLarge?.copyWith(
+      fontSize: 12,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+    labelMedium: bodyTextTheme.labelMedium?.copyWith(
+      fontSize: 14,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+    labelSmall: bodyTextTheme.labelSmall?.copyWith(
+      fontSize: 14,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+    titleLarge: titleTextTheme.titleLarge?.copyWith(
+      fontSize: 40,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+    titleMedium: titleTextTheme.titleMedium?.copyWith(
+      fontSize: 14,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+    titleSmall: titleTextTheme.titleSmall?.copyWith(
+      fontSize: 16,
+      color: Theme.of(context).colorScheme.secondary,
+    ),
+  );
+  return textTheme;
+}