Add color-blind friendly themes from Slack

data/themes.yml

@@ -136,3 +136,9 @@
 -
   :name: 'Goodstuff FM'
   :colors: '#292D36,#000000,#DA5647,#FFFFFF,#333644,#FFFFFF,#57AFBD,#DA5647'
+-
+  :name: 'Solanum'
+  :colors: '#4F2F4C,#452842,#8C5888,#FFFFFF,#3E313C,#FFFFFF,#D0FF00,#889100'
+-
+  :name: 'Brinjal'
+  :colors: '#4F2F4C,#452842,#8C5888,#FFFFFF,#3E313C,#FFFFFF,#00FFB7,#DE4C0D'