Resolve #7.

utils/color.go

@@ -0,0 +1,16 @@
+package utils
+
+import (
+	"github.com/n1try/wakapi/models"
+	"strings"
+)
+
+func FilterLanguageColors(all map[string]string, summary *models.Summary) map[string]string {
+	subset := make(map[string]string)
+	for _, item := range summary.Languages {
+		if c, ok := all[strings.ToLower(item.Key)]; ok {
+			subset[strings.ToLower(item.Key)] = c
+		}
+	}
+	return subset
+}