changeFontSizeStep = function() {
            const Button = this;
            FontSizeChanger.changeFontSizeStep(Button.Step, {
                before: () => Button.ButtonGroup.Busy = true,
                after:  () => Button.ButtonGroup.Busy = false
            });
        }
/                             Ele.ownerDocument.documentElement.classList.add(CNPf + 'flick-active');
            if(I.isScrollable()) Ele.ownerDocument.documentElement.classList.add(CNPf + 'flick-scrollable');
        },
        deactivateElement: (Ele) => { if(!Ele) return false;
            Ele.removeEventListener(E['pointerdown'], FlickObserver.onTouchStart, E.Cpt1Psv0);
            const CNPf = FlickObserver.getCNPf(Ele);
            Ele.ownerDocument.documentElement.classList.remove(CNPf + 'flick-active');
            Ele.ownerDocument.documentElement.classList.remove(CNPf + 'flick-scrollable');
        }
    };
    FlickObserver.activateElement(R.Main);
    E.add('bibi:loaded-item', Item => FlickObserver.activateElement(Item.HTML));
    E.dispatch('bibi:created-flick-observer');
}};


I.WheelObserver = { create: () => {
    const WheelObserver = I.WheelObserver = {
        TotalDelta: 0,
        Turned: false,
        Wheels: [],
        reset: () => {
            WheelObserver.TotalDelta = 0;
            WheelObserver.Progress = 0;
            WheelObserver.Turned = false;
            WheelObserver.Wheels = [];
        },
        reserveResetWith: (fn) => {
            clearTimeout(WheelObserver.Timer_resetWheeling);
            try { fn(); } catch(Err) {}
            WheelObserver.Timer_resetWheeling = setTimeout(WheelObserver.reset, 234);
        },
        careTurned: () => {
            WheelObserver.reserveResetWith(() => WheelObserver.Turned = true);
        },
        heat: () => {
            clearTimeout(WheelObserver.Timer_coolDown);
            WheelObserver.Hot = true;
            WheelObserver.Timer_coolDown = setTimeout(() => WheelObserver.Hot = false, 234);
        },
        onWheel: (Eve) => {
            //if(WheelObserver.Turned) return WheelObserver.careTurned();
            const WA /* WheelAxis