diff -Naur jgrf-2.0.1/src/detect.c jgrf-2.0.1.patched/src/detect.c
--- jgrf-2.0.1/src/detect.c	2026-07-26 17:50:54.000000000 -0400
+++ jgrf-2.0.1.patched/src/detect.c	2026-07-27 20:09:48.080929033 -0400
@@ -115,6 +115,10 @@
     {"ws",  "wswan"},
     {"wsc", "wswan"},
     {"z64", "n64"},
+    {"fig", "snes"},
+    {"smd", "md"},
+    {"sra", "md"},
+    {"swc", "snes"},
 };
 
 static unsigned detect_attempt = 0;