Good morning,
I am trying to navigate the heatmap in the demo (https://www.highcharts.com/demo/heatmap) using keyboard keys like in the other charts like line and column but it does not seem to be working. For the other charts, I can use the TAB key to navigate between different regions within the chart and once in the main chart, I can use the arrow keys to navigate to line points or columns. But for the heatmap demo, I can tab the chart and the context menu but not the legend and when in the chart, the arrow keys don't let me navigate to other squares. I checked and this demo did include the accessibility module so keyboard navigation should work. How does keyboard navigation work for heatmaps and why can't I navigate to the legend using the TAB key or between the different squares using the arrow keys like with the other charts?
Thanks!