From 826a7dd29aea7041fb25b98d360da4dbedf22712 Mon Sep 17 00:00:00 2001
From: Eric Eastwood <erice@element.io>
Date: Thu, 22 Jan 2026 14:07:22 -0600
Subject: [PATCH] Update "Event Send Time Quantiles" graph to only use dots for
 the event persistence rate (#19399)

This is the same thing we already do in the [`matrix.org`
dashboard](https://grafana.matrix.org/d/000000012/synapse) and although
the purple dots aren't new (introduced in
https://github.com/matrix-org/synapse/pull/10001), you can see that was
the intention in https://github.com/element-hq/synapse/pull/18510. I
think this was just how our contrib dashboard looked at the time and
perhaps was a Grafana version mismatch thing which is why it didn't
translate.
---
 changelog.d/19399.misc       | 1 +
 contrib/grafana/synapse.json | 8 ++++++++
 2 files changed, 9 insertions(+)
 create mode 100644 changelog.d/19399.misc

diff --git a/changelog.d/19399.misc b/changelog.d/19399.misc
new file mode 100644
index 0000000000..0d02904f40
--- /dev/null
+++ b/changelog.d/19399.misc
@@ -0,0 +1 @@
+Update "Event Send Time Quantiles" graph to only use dots for the event persistence rate (Grafana dashboard).
diff --git a/contrib/grafana/synapse.json b/contrib/grafana/synapse.json
index af6c9d7b9e..ceacc10369 100644
--- a/contrib/grafana/synapse.json
+++ b/contrib/grafana/synapse.json
@@ -416,6 +416,10 @@
               {
                 "id": "custom.axisPlacement",
                 "value": "right"
+              },
+              {
+                "id": "custom.fillOpacity",
+                "value": 0
               }
             ]
           },
@@ -443,6 +447,10 @@
               {
                 "id": "custom.axisPlacement",
                 "value": "right"
+              },
+              {
+                "id": "custom.fillOpacity",
+                "value": 0
               }
             ]
           }