feat: support for 'chalk/stderr'

fix #301

package.json

@@ -15,7 +15,9 @@
 		"index.js",
 		"templates.js",
 		"index.d.ts",
-		"index.js.flow"
+		"index.js.flow",
+		"stderr.js",
+		"stderr.d.ts"
 	],
 	"keywords": [
 		"color",

stderr.d.ts

@@ -0,0 +1,6 @@
+import Chalk from '.';
+
+declare const chalk: Chalk;
+
+export * from '.';
+export default chalk;

stderr.js

@@ -0,0 +1,7 @@
+'use strict';
+const {stderr: stderrColor} = require('supports-color');
+const {constructor: Chalk} = require('.');
+
+module.exports = new Chalk({level: stderrColor ? stderrColor.level : 0});
+module.exports.supportsColor = stderrColor;
+module.exports.default = module.exports; // For TypeScript

stderr.test-d.ts

@@ -0,0 +1,27 @@
+import {expectType} from 'tsd-check';
+import cherr, {Level, Chalk, ColorSupport} from './stderr';
+
+// - Helpers -
+type colorReturn = Chalk & {supportsColor: ColorSupport};
+
+// - supportsColor -
+expectType<boolean>(cherr.supportsColor.hasBasic);
+expectType<boolean>(cherr.supportsColor.has256);
+expectType<boolean>(cherr.supportsColor.has16m);
+
+// - Chalk -
+// -- Constructor --
+expectType<Chalk>(new cherr.constructor({level: 1}));
+
+// -- Properties --
+expectType<boolean>(cherr.enabled);
+expectType<Level>(cherr.level);
+
+// -- Template literal --
+expectType<string>(cherr``);
+
+// -- Color methods --
+expectType<colorReturn>(cherr.hex('#DEADED'));
+
+// -- Complex --
+expectType<string>(cherr.underline.red.bgGreen('foo'));