$ flutter create dev_quiz
$ cd dev_quiz
$ dart migrate --apply-changes
$ flutter run

.
|____home 📂
| |____home_page.dart
| |____widgets 📂
| | |____appbar 📂
| | | |____app_bar_widget.dart
| | |____level_button 📂
| | | |____level_button_widget.dart
| | |____chart 📂
| | | |____chart_widget.dart
| | |____score_card 📂
| | | |____score_card_widget.dart
| | |____quiz_card 📂
| | | |____quiz_card_widget.dart
|____splash 📂
| |____splash_page.dart
|____core 📂
| |____app_images.dart
| |____core.dart
| |____app_widget.dart
| |____app_text_styles.dart
| |____app_gradients.dart
| |____app_colors.dart
|____shared 📂
| |____widget 📂
| | |____progress_indicator_widget.dart
|____main.dart
|____challenge 📂
| |____widget 📂
| | |____question_inidicator 📂
| | | |____question_inidicator_widget.dart
| | |____answer 📂
| | | |____answer_widget.dart
| | |____quiz 📂
| | | |____quiz_widget.dart
| |____challenge_page.dart