Rename textColors to textColor

defaultConfig.stub.js

@@ -46,7 +46,7 @@ module.exports = {
     stroke: [],
     tableLayout: ['responsive'],
     textAlign: ['responsive'],
-    textColors: ['responsive', 'hover', 'focus'],
+    textColor: ['responsive', 'hover', 'focus'],
     fontSize: ['responsive'],
     textStyle: ['responsive', 'hover', 'focus'],
     letterSpacing: ['responsive'],

defaultTheme.js

@@ -153,7 +153,7 @@ module.exports = function() {
       normal: '0',
       wide: '0.05em',
     },
-    textColors: theme => theme.colors,
+    textColor: theme => theme.colors,
     backgroundColor: theme => theme.colors,
     backgroundPosition: {
       bottom: 'bottom',

plugins/textColor.js

@@ -0,0 +1 @@
+module.exports = require('../lib/plugins/textColor').default

plugins/textColors.js

@@ -1 +0,0 @@
-module.exports = require('../lib/plugins/textColors').default

src/corePlugins.js

@@ -39,7 +39,7 @@ import fill from './plugins/fill'
 import stroke from './plugins/stroke'
 import tableLayout from './plugins/tableLayout'
 import textAlign from './plugins/textAlign'
-import textColors from './plugins/textColors'
+import textColor from './plugins/textColor'
 import fontSize from './plugins/fontSize'
 import textStyle from './plugins/textStyle'
 import letterSpacing from './plugins/letterSpacing'
@@ -110,7 +110,7 @@ export default function(config) {
     stroke,
     tableLayout,
     textAlign,
-    textColors,
+    textColor,
     fontSize,
     textStyle,
     letterSpacing,