My theme now uses a few of Hugo's internal metadata templates and the convention there is to look for an "images" array in front matter.
898 B
+++ date = "2016-09-29T11:54:07+03:00" title = "King Hussein Mosque at Night" author = "Alan Orth" slug = "king-hussein-mosque-night" aliases = ["/2016/09/king-hussein-mosque-at-night/"] categories = ["Architecture"] tags = ["Mosque", "Amman"] description = "Alan practices night photography on the largest mosque in Amman." images = ["/2016/09/DSC_0010.jpg"] +++
{{< figure src="/2016/09/DSC_0010.jpg" title="Amman's King Hussein mosque at night" alt="Amman's King Hussein mosque at night" >}}
The King Hussein mosque was built in 2005 and is the largest mosque in Jordan. I haven't visited it yet, but I've spent quite a few evenings admiring it from a balcony in the Khalda neighborhood of West Amman.
Technical: Nikon D3100, ten-second exposure time, post processed from RAW with darktable.