Render railway platform slightly different from sidewalk

(closes #4182)

css/40_railways.css

@@ -86,11 +86,15 @@ path.stroke.tag-railway-subway {
 
 /* railway platforms - like sidewalks */
 
+.preset-icon .icon.highway-footway.tag-railway-platform {
+    color: #ae8681;
+    fill: #dcd9b9;
+}
 path.shadow.tag-railway-platform {
     stroke-width: 16;
 }
 path.casing.tag-railway-platform {
-    stroke: #fff;
+    stroke: #dcd9b9;
     stroke-width: 5;
     stroke-linecap: round;
     stroke-dasharray: none;

data/presets/presets.json

@@ -10408,10 +10408,14 @@
             "name": "Narrow Gauge Rail"
         },
         "railway/platform": {
-            "icon": "rail",
+            "icon": "highway-footway",
+            "fields": [
+                "ref_platform",
+                "surface",
+                "lit",
+                "shelter"
+            ],
             "geometry": [
-                "point",
-                "vertex",
                 "line",
                 "area"
             ],

data/presets/presets/highway/footway.json

@@ -8,7 +8,8 @@
         "access"
     ],
     "geometry": [
-        "line", "area"
+        "line",
+        "area"
     ],
     "terms": [
         "hike",

data/presets/presets/railway/platform.json

@@ -1,8 +1,12 @@
 {
-    "icon": "rail",
+    "icon": "highway-footway",
+    "fields": [
+        "ref_platform",
+        "surface",
+        "lit",
+        "shelter"
+    ],
     "geometry": [
-        "point",
-        "vertex",
         "line",
         "area"
     ],