Is it possible to plot a chart, with different background color for trading hours vs outside trading hours? Thanks.
Sure you just need a “ribbon” that covers whole chart area. And Ribbon code is shown in the manual
http://www.amibroker.com/guide/h_indbuilder2.html and in the Knowledge Base http://www.amibroker.com/kb/2015/09/30/positioning-area-plots-behind-the-grid-lines/
Thank you very much. It works perfectly.