xmas: show outdated features in red

xmas.json

@@ -14,9 +14,17 @@
         ]
     },
     "feature": {
+        "pre": [
+            "{% set isCurrent = meta.timestamp > now|date_modify('-1 month')|date('Y') %}",
+            "{% set bgColor = isCurrent ? '#f2756a' : 'red' %}"
+        ],
         "title": "{{ attribute(tags, \"xmas:name\")|default(trans(\"unnamed\")) }}",
         "description": "{{ tagTransList(\"xmas:feature\", attribute(tags, \"xmas:feature\")) }}",
         "body": [
+            "{% if not isCurrent %}",
+            "<div style='border: 1px solid red; padding: 2px; margin-bottom: 2px;'>Feature has not been updated for the current season! Please check and set the tag 'xmas:lastcheck' to the current date.</div>",
+            "{% endif %}",
+            "",
             "{% if attribute(tags, 'xmas:location') %}",
             "<li class='hasSymbol'>",
             "  <i class=\"fa fa-globe\" aria-hidden=\"true\"></i>",
@@ -60,7 +68,9 @@
         "markerSign": [
             "{{ attribute(const, attribute(tags, 'xmas:feature'))|raw }}",
             ""
-        ]
+        ],
+        "markerSymbol": "{{ markerPointer({\"fillColor\":bgColor})|raw }}",
+        "listMarkerSymbol": "{{ markerCircle({\"fillColor\":bgColor})|raw }}"
     },
     "const": {
         "market": "<img src='maki:commercial'>",