#includeThis code creates a blue QColor object and calls the lighter() function with a value of 50. This will return a QColor object representing a shade of blue that is 50% lighter than the original. The output of this code will display the RGBA value of the original blue and the lighter shade of blue. Package/Library: Qt GUI library.#include int main() { QColor blue(0, 0, 255); // create a QColor object representing blue QColor lightBlue = blue.lighter(50); // get a lighter shade of blue qDebug() << "RGBA value of original blue: " << blue.red() << blue.green() << blue.blue() << blue.alpha(); qDebug() << "RGBA value of light blue: " << lightBlue.red() << lightBlue.green() << lightBlue.blue() << lightBlue.alpha(); return 0; }