diff --git a/gamutrf/scan.py b/gamutrf/scan.py
index 96d88450..dcc69610 100644
--- a/gamutrf/scan.py
+++ b/gamutrf/scan.py
@@ -398,7 +398,7 @@ def argument_parser():
         "--colormap",
         dest="colormap",
         type=int,
-        default=16,
+        default=20,
         help="""OpenCV colormap for spectrograms. See
         https://docs.opencv.org/4.x/d3/d50/group__imgproc__colormap.html""",
     )
diff --git a/orchestrator.yml b/orchestrator.yml
index 7cf9f03a..3b25dcfb 100644
--- a/orchestrator.yml
+++ b/orchestrator.yml
@@ -83,6 +83,7 @@ services:
       - --n_image=5
       - --no-vkfft
       - --rotate_secs=300
+      - --colormap=20
       # - --external_gps_server=1.2.3.4
       # - --external_gps_server_port=8888
       - --inference_output_dir=/logs/inference