Cant change bid line color

 Hi all.

 I'm using next code lines to attempt change bid line color but it doesn't change color. although ask line is working fine.

Can you help me. Thank you 

ChartSetInteger(NULL, CHART_SHOW_ASK_LINE, True);

ChartSetInteger(NULL, CHART_SHOW_BID_LINE, True); 

ChartSetInteger(NULL, CHART_COLOR_ASK, clrRed); 

ChartSetInteger(NULL, CHART_COLOR_BID, clrBlue);