add translatable strings for crossing:markings values

interim/source_strings.yaml

@@ -791,6 +791,37 @@ en:
       crossing/markings:
         # crossing:markings=*
         label: Crossing Markings
+        options:
+          # crossing:markings=dashes
+          dashes: Dashed Transverse Lines
+          # crossing:markings=dots
+          dots: Dotted Transverse Lines
+          # crossing:markings=ladder
+          ladder: Ladder With Longitudinal Bars
+          #paired': crossing:markings=ladder:paired
+          ladder:paired: Ladder With Paired Longitudinal Bars
+          #skewed': crossing:markings=ladder:skewed
+          ladder:skewed: Ladder With Diagonal Bars
+          # crossing:markings=lines
+          lines: Transverse Lines
+          #paired': crossing:markings=lines:paired
+          lines:paired: Double Transverse Lines
+          # crossing:markings=no
+          'no': Unmarked
+          # crossing:markings=pictograms
+          pictograms: Painted Pictograms
+          # crossing:markings=surface
+          surface: Surface Treatment Only
+          # crossing:markings=yes
+          'yes': Marked Somehow
+          # crossing:markings=zebra
+          zebra: Longitudinal Bars
+          #bicolour': crossing:markings=zebra:bicolour
+          zebra:bicolour: Longitudinal Bars With Alternating Colors
+          #double': crossing:markings=zebra:double
+          zebra:double: Triple-Four
+          #paired': crossing:markings=zebra:paired
+          zebra:paired: Paired Longitudinal Bars
         terms: '[translate with synonyms or related terms for ''Crossing Markings'', separated by commas]'
       crossing_raised:
         # traffic_calming=*