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void main() {
int count = 0;
bool isDark = false;
var updateUI = () => print('Counter: $count, Theme: ${isDark ? 'Dark' : 'Light'}');
var increment = () { count++; updateUI(); };
var decrement = () { count--; updateUI(); };
var reset = () { count = 0; updateUI(); };
var toggleTheme = () { isDark = !isDark; updateUI(); };
updateUI();
increment();
toggleTheme();
decrement();
reset();
}Coding works best on desktop or with an external keyboard.