1.2.554 : update for Android 34 targeting.
1.2.551 : update caused by Firebase evolution
1.2.549 : sleep then wake-up leaded to the creation of another background layer : corrected!
1.2.548 : no more app crash when device is running low in memory and the filling tool is used.
1.2.547 : filling tool corrected.
1.2.546 : filling a closed area is now much faster!
1.2.545 : bug related to the positionning of the visibility window corrected.