diff --git a/data/gdal-colors/colors-lswt.txt b/data/gdal-colors/colors-lswt.txt
index b746dff2f..42074a417 100644
--- a/data/gdal-colors/colors-lswt.txt
+++ b/data/gdal-colors/colors-lswt.txt
@@ -1,9 +1,14 @@
-3500 230 56 30
-2250 230 230 30
-1250 30 230 30
-500 20 210 230
--500 28 88 203
--4999 28 88 203
+3500 120 10 10
+3000 240 40 40
+2500 240 120 30
+2000 250 210 35
+1500 148 200 148
+1000 100 200 200
+500 65 168 240
+0 40 40 140
+-500 10 10 60
+-4999 10 10 60
 -5000 255 255 255
 -42767 0 0 0 0
 nv 0 0 0 0
+
diff --git a/data/layers-config.json b/data/layers-config.json
index 0d099d7e7..1e792ec28 100644
--- a/data/layers-config.json
+++ b/data/layers-config.json
@@ -321,6 +321,7 @@
   },
   "lakes.lswt": {
     "colorMap": "custom",
+    "basemap": "dark",
     "timeFormat": {
       "year": "numeric",
       "month": "long"
diff --git a/data/triggers/lakes_lswt.sh b/data/triggers/lakes_lswt.sh
index 58b81cc7a..d15bdd9ec 100755
--- a/data/triggers/lakes_lswt.sh
+++ b/data/triggers/lakes_lswt.sh
@@ -4,7 +4,7 @@ TIMEOUT=16000
 LAYER_ID="lakes.lswt"
 VARIABLE_ID="lswt"
 LAYER_TYPE="image"
-VERSION="1.7.1"
+VERSION="1.8.1"
 LON_RES="4320"
 LAT_RES="2160"
 ZOOM_LEVELS="0-3"
diff --git a/scripts/generate-legend-images.js b/scripts/generate-legend-images.js
index 41d6198a5..7e3dbf734 100644
--- a/scripts/generate-legend-images.js
+++ b/scripts/generate-legend-images.js
@@ -64,11 +64,18 @@ files.forEach(file => {
 function readColorFile(file) {
   const filePath = path.join(INTPUT_FOLDER, file);
   const content = fs.readFileSync(filePath, 'utf8');
-  return content
+  const stops = content
     .split('\n')
     .filter(Boolean)
     .filter(line => !line.startsWith('nv'))
     .map(line => line.split(' '));
+
+  if (file.includes('lswt')) {
+    // do not include the "ice" color
+    return stops.filter(([v]) => v > -1000);
+  }
+
+  return stops;
 }
 
 function writeImage(file, canvas) {