[Console] Console colorization is also provided by ConEmu on Windows

src/Symfony/Component/Console/CHANGELOG.md

@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+2.1.2
+-----
+
+ * added support for colorization on Windows via ConEmu
+
 2.1.0
 -----
 

src/Symfony/Component/Console/Output/StreamOutput.php

@@ -95,7 +95,7 @@ class StreamOutput extends Output
      *
      * Colorization is disabled if not supported by the stream:
      *
-     *  -  windows without ansicon
+     *  -  windows without ansicon and ConEmu
      *  -  non tty consoles
      *
      * @return Boolean true if the stream supports colorization, false otherwise
@@ -104,7 +104,7 @@ class StreamOutput extends Output
     {
         // @codeCoverageIgnoreStart
         if (DIRECTORY_SEPARATOR == '\\') {
-            return false !== getenv('ANSICON');
+            return false !== getenv('ANSICON') || 'ON' === getenv('ConEmuANSI');
         }
 
         return function_exists('posix_isatty') && @posix_isatty($this->stream);