NewGauge: Adds new feature toggle named newGauge (#112593)

* NewGauge: Feature toggle and fixes

* Gauge: New migration test dashboard

* Update

* Updates

* Tweaked default barWidth

* Fix multi data links

* remove sizing options

* merge fix

* Update

* Restore

* Update

* Tweaked name font size logic

* use file snapshots instead of inline

---------

Co-authored-by: Paul Marbach <paul.marbach@grafana.com>

pkg/services/featuremgmt/registry.go

@@ -2110,6 +2110,14 @@ var (
 			Owner:        grafanaPluginsPlatformSquad,
 			Expression:   "false",
 		},
+		{
+			Name:         "newGauge",
+			Description:  "Enable new gauge visualization",
+			Stage:        FeatureStageExperimental,
+			FrontendOnly: true,
+			Owner:        grafanaDatavizSquad,
+			Expression:   "false",
+		},
 		{
 			Name:         "preventPanelChromeOverflow",
 			Description:  "Restrict PanelChrome contents with overflow: hidden;",

pkg/services/featuremgmt/toggles_gen.csv

@@ -271,6 +271,7 @@ pluginContainers,privatePreview,@grafana/plugins-platform-backend,false,true,fal
 tempoSearchBackendMigration,GA,@grafana/oss-big-tent,false,true,false
 cdnPluginsLoadFirst,experimental,@grafana/plugins-platform-backend,false,false,false
 cdnPluginsUrls,experimental,@grafana/plugins-platform-backend,false,false,false
+newGauge,experimental,@grafana/dataviz-squad,false,false,true
 preventPanelChromeOverflow,preview,@grafana/grafana-frontend-platform,false,false,true
 pluginStoreServiceLoading,experimental,@grafana/plugins-platform-backend,false,false,false
 onlyStoreActionSets,GA,@grafana/identity-access-team,false,false,false

pkg/services/featuremgmt/toggles_gen.go

@@ -1094,6 +1094,10 @@ const (
 	// Enable loading plugins via declarative URLs
 	FlagCdnPluginsUrls = "cdnPluginsUrls"
 
+	// FlagNewGauge
+	// Enable new gauge visualization
+	FlagNewGauge = "newGauge"
+
 	// FlagPreventPanelChromeOverflow
 	// Restrict PanelChrome contents with overflow: hidden;
 	FlagPreventPanelChromeOverflow = "preventPanelChromeOverflow"

pkg/services/featuremgmt/toggles_gen.json

@@ -2694,6 +2694,20 @@
         "expression": "true"
       }
     },
+    {
+      "metadata": {
+        "name": "newGauge",
+        "resourceVersion": "1760700645318",
+        "creationTimestamp": "2025-10-17T11:30:45Z"
+      },
+      "spec": {
+        "description": "Enable new gauge visualization",
+        "stage": "experimental",
+        "codeowner": "@grafana/dataviz-squad",
+        "frontend": true,
+        "expression": "false"
+      }
+    },
     {
       "metadata": {
         "name": "newInfluxDSConfigPageDesign",