drawVerticalText method
Implementation
@override
void drawVerticalText(canvas) {
var textStyle = getTextStyle(style.colors.defaultText);
if (!hideGrid) mMainRenderer.drawVerticalText(canvas, textStyle, mGridRows);
mVolRenderer?.drawVerticalText(canvas, textStyle, mGridRows);
mSecondaryRenderer?.drawVerticalText(canvas, textStyle, mGridRows);
}