rem: if (topColor.set == cpHSV) { topColor.hsv.value = 255;
add: if (topColor.set == cpHSV)
context: wheelUpdateBrightnessGradient(W_ColorPanel *panel, CPColor topColor){    RColor	to;    RImage	*sliderImg;    WMPixmap	*sliderPxmp;        to.red = to.green = to.blue = 0;    if (topColor.set == cpHSV) {	topColor.hsv.value = 255;	convertCPColor(&topColor);    }        sliderImg = RRenderGradient(16, 153, &(topColor.rgb), &to, RGRD_VERTICAL);    sliderPxmp = WMCreatePixmapFromRImage(WMWidgetScreen(panel->win), 					  sliderImg, 0);    RDestroyImage(sliderImg);    WMSetSliderImage(panel->wheelBrightnessS, sliderPxmp);    WMReleasePixmap(sliderPxmp);}