so i was learning flutter and i was checking the hot reload function of it and there is a problem i encountered the default program gives you an app that counts the number of times the button is clicked and there is a heading on the top written “Flutter Demo Home Page” and the default background color is deepPurple but when i change it to some other colors like black or grey it gives me some random color and when i do red ,green or blue it works perfectly fine . What could be the problem can someone solve this?