Squashed commit of the following:

commit 0258ae7ca6fb9af1dad1c5c4fb765e4a5fa75a31
Author: Bert <bert.marcelis@outlook.com>
Date:   Sat Jan 16 11:25:34 2021 +0100

    Add presets for marsh, swamp and reedbed

    https://wiki.openstreetmap.org/wiki/Tag:wetland%3Dmarsh
    https://wiki.openstreetmap.org/wiki/Tag:wetland%3Dswamp
    https://wiki.openstreetmap.org/wiki/Tag:wetland%3Dreedbed

data/presets/natural/marsh.json

@@ -0,0 +1,17 @@
+{
+    "icon": "maki-wetland",
+    "fields": [
+        "wetland",
+        "salt",
+        "tidal"
+    ],
+    "geometry": [
+        "area"
+    ],
+    "tags": {
+        "natural": "wetland",
+        "wetland": "marsh"
+    },
+    "terms": [],
+    "name": "Marsh"
+}

data/presets/natural/reedbed.json

@@ -0,0 +1,21 @@
+{
+    "icon": "maki-wetland",
+    "fields": [
+        "wetland",
+        "salt",
+        "tidal"
+    ],
+    "geometry": [
+        "area"
+    ],
+    "tags": {
+        "natural": "wetland",
+        "wetland": "reedbed"
+    },
+    "terms": [
+        "reeds",
+        "bulrushes",
+        "cattail"
+    ],
+    "name": "Reed bed"
+}

data/presets/natural/swamp.json

@@ -0,0 +1,17 @@
+{
+    "icon": "maki-wetland",
+    "fields": [
+        "wetland",
+        "salt",
+        "tidal"
+    ],
+    "geometry": [
+        "area"
+    ],
+    "tags": {
+        "natural": "wetland",
+        "wetland": "swamp"
+    },
+    "terms": [],
+    "name": "Swamp"
+}

interim/source_strings.yaml

@@ -7172,6 +7172,10 @@ en:
         name: Hot Spring
         # 'terms: geothermal spring,thermal pool'
         terms: '<translate with synonyms or related terms for ''Hot Spring'', separated by commas>'
+      natural/marsh:
+        # 'natural=wetland + wetland=marsh\n\nTranslate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).'
+        name: Marsh
+        terms: '<translate with synonyms or related terms for ''Marsh'', separated by commas>'
       natural/mud:
         # 'natural=mud\n\nTranslate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).'
         name: Mud
@@ -7182,6 +7186,11 @@ en:
         name: Peak
         # 'terms: acme,aiguille,alp,climax,crest,crown,hill,mount,mountain,pinnacle,summit,tip,top'
         terms: '<translate with synonyms or related terms for ''Peak'', separated by commas>'
+      natural/reedbed:
+        # 'natural=wetland + wetland=reedbed\n\nTranslate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).'
+        name: Reed bed
+        # 'terms: reeds,bulrushes,cattail'
+        terms: '<translate with synonyms or related terms for ''Reed bed'', separated by commas>'
       natural/reef:
         # 'natural=reef\n\nTranslate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).'
         name: Reef
@@ -7237,6 +7246,10 @@ en:
         name: Unattached Stone / Boulder
         # 'terms: boulder,stone,rock'
         terms: '<translate with synonyms or related terms for ''Unattached Stone / Boulder'', separated by commas>'
+      natural/swamp:
+        # 'natural=wetland + wetland=swamp\n\nTranslate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).'
+        name: Swamp
+        terms: '<translate with synonyms or related terms for ''Swamp'', separated by commas>'
       natural/tree:
         # 'natural=tree\n\nTranslate the primary name. Optionally, add equivalent synonyms on newlines in order of preference (press the Return key).'
         name: Tree