From 6533eb92448c6e49d46f51fc3d852d76d715a871 Mon Sep 17 00:00:00 2001
From: Leon Sorokin <leeoniya@gmail.com>
Date: Wed, 26 Jan 2022 17:06:11 -0600
Subject: [PATCH] TimeSeries: disable fill when fillBelowTo field is missing
 (#44498)

---
 packages/grafana-ui/src/components/TimeSeries/utils.ts | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/packages/grafana-ui/src/components/TimeSeries/utils.ts b/packages/grafana-ui/src/components/TimeSeries/utils.ts
index c5fb304cc53..650e748a284 100644
--- a/packages/grafana-ui/src/components/TimeSeries/utils.ts
+++ b/packages/grafana-ui/src/components/TimeSeries/utils.ts
@@ -272,9 +272,12 @@ export const preparePlotConfigBuilder: UPlotConfigPrepFn<{
             series: [t, b],
             fill: undefined, // using null will have the band use fill options from `t`
           });
-        }
-        if (!fillOpacity) {
-          fillOpacity = 35; // default from flot
+
+          if (!fillOpacity) {
+            fillOpacity = 35; // default from flot
+          }
+        } else {
+          fillOpacity = 0;
         }
       }
     }