Add Hummingbird Theme

data/themes.yml

@@ -103,3 +103,4 @@
 - { colors: '#3F51B5,#303F9F,#303F9F,#FFFFFF,#303F9F,#FFFFFF,#B2FF59,#9FA8DA', name: 'Material Indigo' }
 - { colors: '#212121,#212121,#3F51B5,#FFFFFF,#3F51B5,#FFFFFF,#3F51B5,#3F51B5', name: 'Material Dark Indigo' }
 - { colors: '#212121,#212121,#607D8B,#FFFFFF,#607D8B,#FFFFFF,#607D8B,#607D8B', name: 'Material Dark Blue Grey' }
+- { colors: '#2F343B,#2F343B,#FD7532,#FFFFFF,#FD7532,#FFFFFF,#FD7532,#FD7532', name: 'Hummingbird' }