diff -r 8adaeecd9dc8 -r a5aa3502310c www/js/log_fermentation.js
--- a/www/js/log_fermentation.js	Mon Jan 07 12:46:27 2019 +0100
+++ b/www/js/log_fermentation.js	Mon Jan 07 16:35:55 2019 +0100
@@ -97,8 +97,8 @@
 					description: "Heat/Cool %"
 				},
 				series: [
-			 		{ dataField: "cooler", lineWidth: 1, displayText: "Cool %", opacity: 0.3 },
-			 		{ dataField: "heater", lineWidth: 1, displayText: "Heat %", opacity: 0.3 }
+			 		{ dataField: "cooler", lineWidth: 1, displayText: "Cool %", opacity: 0.4 },
+			 		{ dataField: "heater", lineWidth: 1, displayText: "Heat %", opacity: 0.4 }
 			 	]
 		 	},
 			{