Update readme, remove color === false check

README.md

@@ -184,6 +184,16 @@ Theme scales are intended to give you enough colors for all use cases including
   --primary-900: hsl(212, 74.7%, 8%);
 ```
 
+### Opting out of theme styles
+
+The classes and custom properties generated by the `theme` configuration are optional, and can be excluded by setting the `theme` property in your styleguide to `false`:
+
+```json
+{
+  "theme": false
+}
+```
+
 ### `color`
 `color` is for one off spot colors. Colors must be specified as hexidecimal and can be named however you like. For example:
 

test/themeColor.test.js

@@ -2,22 +2,16 @@ import test from 'tape'
 
 import themeColor from '../theme-color.mjs'
 
-const noThemeColor = {
-  theme: false,
-  color: false,
-}
-
 const noTheme = {
   theme: false
 }
 
 const noColor = {
-  color: false
+  color: {}
 }
 
 test('themeColor', t => {
-  t.equal(themeColor({ config: noThemeColor }), '', 'should emit an empty string when `config.theme` and `config.color` are both `false`')
   t.notOk(themeColor({ config: noTheme }).includes('/*** Theme Colors ***/'), 'should not include theme colors when `config.theme` is `false`')
-  t.notOk(themeColor({ config: noColor }).includes('/*** Spot Colors ***/'), 'should not include spot colors when `config.color` is `false`')
+  t.notOk(themeColor({ config: noColor }).includes('/*** Spot Colors ***/'), 'should not include spot colors when `config.color` is empty')
   t.end()
 })

theme-color.mjs

@@ -3,7 +3,7 @@ import hextohsl from './hex-to-hsl.mjs'
 export default function themeColor({ config }) {
   const { color = {}, theme = {} } = config
 
-  if (color === false && theme === false) {
+  if (theme === false) {
     return ''
   }
 
@@ -137,7 +137,7 @@ ${grayScale}
 
   let result = ``
   if (theme !== false) result += themeStyles
-  if (color !== false && Object.keys(color).length) result += colorStyles
+  if (Object.keys(color).length) result += colorStyles
 
   return result
 }