remove unused utils, move specific utils into component files

components/BackgroundSelect.js

@@ -6,7 +6,9 @@ import WindowPointer from './WindowPointer'
 import ImagePicker from './ImagePicker'
 import { COLORS, DEFAULT_BG_COLOR } from '../lib/constants'
 import { validateColor } from '../lib/colors'
-import { parseRGBA, capitalizeFirstLetter } from '../lib/util'
+
+const stringifyRGBA = obj => `rgba(${obj.r},${obj.g},${obj.b},${obj.a})`
+const capitalizeFirstLetter = s => s.charAt(0).toUpperCase() + s.slice(1)
 
 class BackgroundSelect extends React.Component {
   constructor(props) {
@@ -44,7 +46,7 @@ class BackgroundSelect extends React.Component {
   }
 
   handlePickColor(color) {
-    this.props.onChange({ backgroundColor: parseRGBA(color.rgb) })
+    this.props.onChange({ backgroundColor: stringifyRGBA(color.rgb) })
   }
 
   render() {

lib/util.js

@@ -37,8 +37,6 @@ export const unescapeHtml = s => {
   }
 }
 
-export const parseRGBA = obj => `rgba(${obj.r},${obj.g},${obj.b},${obj.a})`
-
 export const getSettings = morph.compose(
   parse,
   escapeHtml,
@@ -56,10 +54,6 @@ export const savePresets = (window, v) => assignPresets(window, JSON.stringify(v
 
 export const clearSettings = () => localStorage.removeItem(SETTINGS_KEY)
 
-export const capitalizeFirstLetter = s => s.charAt(0).toUpperCase() + s.slice(1)
-
-export const range = n => [...Array(n).keys()]
-
 export const fileToDataURL = blob =>
   new Promise(res => {
     const reader = new FileReader()