Add light foreground and background colors to IO.ANSI (#5231)

2 files changed, 14 insertions, 0 deletions

diff --git a/lib/elixir/lib/io/ansi.ex b/lib/elixir/lib/io/ansi.ex
index 552408cb7..ab8a367eb 100644
--- a/lib/elixir/lib/io/ansi.ex
+++ b/lib/elixir/lib/io/ansi.ex
@@ -135,8 +135,14 @@ defmodule IO.ANSI do
     @doc "Sets foreground color to #{color}."
     defsequence color, code + 30
 
+    @doc "Sets foreground color to light #{color}."
+    defsequence :"light_#{color}", code + 90
+
     @doc "Sets background color to #{color}."
     defsequence :"#{color}_background", code + 40
+
+    @doc "Sets background color to light #{color}."
+    defsequence :"light_#{color}_background", code + 100
   end
 
   @doc "Default text color."
diff --git a/lib/elixir/test/elixir/io/ansi_test.exs b/lib/elixir/test/elixir/io/ansi_test.exs
index f22549df6..0bc883d39 100644
--- a/lib/elixir/test/elixir/io/ansi_test.exs
+++ b/lib/elixir/test/elixir/io/ansi_test.exs
@@ -97,6 +97,14 @@ defmodule IO.ANSITest do
     end
   end
 
+  test "colors" do
+    assert IO.ANSI.red       == "\e[31m"
+    assert IO.ANSI.light_red == "\e[91m"
+
+    assert IO.ANSI.red_background       == "\e[41m"
+    assert IO.ANSI.light_red_background == "\e[101m"
+  end
+
   test "color/1" do
     assert IO.ANSI.color(0) == "\e[38;5;0m"
     assert IO.ANSI.color(42) == "\e[38;5;42m"