Index: read.c
===================================================================
--- read.c	(revision 34354)
+++ read.c	(revision 34355)
@@ -2356,6 +2356,15 @@
 					iolht_warn(rctx, vp, -1, "Route style %s references to non-existent prototype %ld\n", s->via_proto);
 			}
 		}
+		if (rctx->rdver >= 8) {
+			lht_node_t *fidn = lht_dom_hash_get(stn, "fid");
+			if (fidn != NULL) {
+				unsigned long fid;
+				if (parse_ulong(&fid, fidn) != 0)
+					return iolht_error(stn, "Invalid route style font ID\n");
+				s->fid = fid;
+			}
+		}
 	}
 	return 0;
 }
Index: write.c
===================================================================
--- write.c	(revision 34354)
+++ write.c	(revision 34355)
@@ -1528,6 +1528,11 @@
 		else if (s->texts > 0)
 			pcb_io_incompat_save(NULL, NULL, "route-style", "lihata boards before version v6 did not support text scale in route style\n", "Either save in lihata v6+ or be aware of losing this information");
 
+		if ((wrver >= 8) && (s->fid != -1))
+			lht_dom_hash_put(sn, build_textf("fid", "%ld", s->fid));
+		else if (s->fid != -1)
+			pcb_io_incompat_save(NULL, NULL, "route-style", "lihata boards before version v8 did not support setting font from style\n", "Either save in lihata v8+ or be aware of losing this information");
+
 		lht_dom_hash_put(sn, build_attributes(&s->attr));
 	}
 	return stl;