I’m continuing my work on better understanding Flutter’s syntax and how to piece together an app through widgets. I was pretty happy to make more progress thanks to Maximilian Schwarzmüller’s Academind course “Learn Flutter & Dart to Build iOS & Android Apps [2021]” (the first five hours are free); Suragch’s “How to include images in your Flutter app“; Flutter Tutorial’s “How to change Flutter App Bar Background Color?“; Flutter For You’s “How to Change Background Color of a Screen in Flutter“; and the official Flutter documentation for Center class.