Imports fyne.io/fyne/v2 fyne.io/fyne/v2/canvas fyne.io/fyne/v2/container fyne.io/fyne/v2/dialog fyne.io/fyne/v2/layout fyne.io/fyne/v2/theme fyne.io/fyne/v2/widget github.com/google/uuid Standard library imports encoding/binary fmt image/color log math/rand time