From eb8ebed83039100b10ad7f30059b4a7b5954950a Mon Sep 17 00:00:00 2001
From: Eduard Urbach <e.urbach@gmail.com>
Date: Fri, 7 Jul 2017 02:53:19 +0200
Subject: [PATCH] HSL model for pie charts

---
 pages/statistics/statistics.go | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/pages/statistics/statistics.go b/pages/statistics/statistics.go
index 3bc4c9d3..8cc06f90 100644
--- a/pages/statistics/statistics.go
+++ b/pages/statistics/statistics.go
@@ -66,6 +66,8 @@ func Get(ctx *aero.Context) string {
 
 	slices := []*utils.PieChartSlice{}
 	current := 0.0
+	hueOffset := 0.0
+	hueScaling := 60.0
 
 	for _, item := range screenSizesSorted {
 		percentage := float64(item.Value) / float64(len(analytics))
@@ -74,7 +76,7 @@ func Get(ctx *aero.Context) string {
 			From:  current,
 			To:    current + percentage,
 			Title: fmt.Sprintf("%s (%d%%)", item.Key, int(percentage*100+0.5)),
-			Color: fmt.Sprintf("rgba(255, 64, 0, %.3f)", 0.8-current*0.8),
+			Color: fmt.Sprintf("hsl(%.1f, 75%%, 50%%)", current*hueScaling+hueOffset),
 		})
 
 		current += percentage