add color indices

alacritty.yml

@@ -399,22 +399,22 @@ colors:
 
   # Normal colors
   normal:
-    black:   '#282828'
-    red:     '#cc241d'
-    green:   '#98971a'
-    yellow:  '#d79921'
-    blue:    '#458588'
-    magenta: '#b16286'
-    cyan:    '#689d6a'
-    white:   '#a89984'
+    black:   '#282828'  # 0
+    red:     '#cc241d'  # 1
+    green:   '#98971a'  # 2
+    yellow:  '#d79921'  # 3
+    blue:    '#458588'  # 4
+    magenta: '#b16286'  # 5
+    cyan:    '#689d6a'  # 6
+    white:   '#a89984'  # 7
 
   # Bright colors
   bright:
-    black:   '#928374'
-    red:     '#fb4934'
-    green:   '#b8bb26'
-    yellow:  '#fabd2f'
-    blue:    '#83a598'
-    magenta: '#d3869b'
-    cyan:    '#8ec07c'
-    white:   '#ebdbb2'
+    black:   '#928374'  # 8
+    red:     '#fb4934'  # 9
+    green:   '#b8bb26'  # 10
+    yellow:  '#fabd2f'  # 11
+    blue:    '#83a598'  # 12
+    magenta: '#d3869b'  # 13
+    cyan:    '#8ec07c'  # 14
+    white:   '#ebdbb2'  # 15