h_feat not working in gbrowse_img (2.25)

The documentation for the gbrowse_img tool lists several flags that you can pass in the url to tailor how your finished image looks. One such flag that we used to use a lot in 1.7 was the h_feat. This seems to now longer work in 2.X (tried today in 2.25).

Please could this be fixed so that either the docs match what is available or could the h_feat be fixed (preferable to us).