private void updateTrend() {
        if (getSkinnable().isTrendVisible()) {
            switch (getSkinnable().getTrend()) {
                case UP:
                    trendUp.setOpacity(1);
                    trendRising.setOpacity(0);
                    trendSteady.setOpacity(0);
                    trendFalling.setOpacity(0);
                    trendDown.setOpacity(0);
                    break;
                case RISING:
                    trendUp.setOpacity(0);
                    trendRising.setOpacity(1);
                    trendSteady.setOpacity(0);
                    trendFalling.setOpacity(0);
                    trendDown.setOpacity(0);
                    break;
                case STEADY:
                    trendUp.setOpacity(0);
                    trendRising.setOpacity(0);
                    trendSteady.setOpacity(1);
                    trendFalling.setOpacity(0);
                    trendDown.setOpacity(0);
                    break;
                case FALLING:
                    trendUp.setOpacity(0);
                    trendRising.setOpacity(0);
                    trendSteady.setOpacity(0);
                    trendFalling.setOpacity(1);
                    trendDown.setOpacity(0);
                    break;
                case DOWN:
                    trendUp.setOpacity(0);
                    trendRising.setOpacity(0);
                    trendSteady.setOpacity(0);
                    trendFalling.setOpacity(0);
                    trendDown.setOpacity(1);
                    break;
                default:
                    trendUp.setOpacity(0);
                    trendRising.setOpacity(0);
                    trendSteady.setOpacity(0);
                    trendFalling.setOpacity(0);
                    trendDown.setOpacity(0);
                    break;
            }
        }
    }