backstage/theme: make colors private, access through theme instead

packages/theme/src/BackstageTheme.ts

@@ -20,7 +20,7 @@ import { blue, yellow } from '@material-ui/core/colors';
 
 import { BackstageMuiTheme, BackstageMuiThemeOptions } from './types';
 
-export const COLORS = {
+const COLORS = {
   PAGE_BACKGROUND: '#F8F8F8',
   DEFAULT_PAGE_THEME_COLOR: '#7C3699',
   DEFAULT_PAGE_THEME_LIGHT_COLOR: '#ECDBF2',

packages/theme/src/BackstageThemeDark.ts

@@ -20,7 +20,7 @@ import { blue, yellow } from '@material-ui/core/colors';
 
 import { BackstageMuiTheme, BackstageMuiThemeOptions } from './types';
 
-export const COLORS = {
+const COLORS = {
   PAGE_BACKGROUND: '#282828',
   EFAULT_PAGE_THEME_COLOR: '#232323',
   DEFAULT_PAGE_THEME_COLOR: '#7C3699',

packages/theme/src/BackstageThemeLight.ts

@@ -20,7 +20,7 @@ import { blue, yellow } from '@material-ui/core/colors';
 
 import { BackstageMuiTheme, BackstageMuiThemeOptions } from './types';
 
-export const COLORS = {
+const COLORS = {
   PAGE_BACKGROUND: '#F8F8F8',
   DEFAULT_PAGE_THEME_COLOR: '#7C3699',
   DEFAULT_PAGE_THEME_LIGHT_COLOR: '#ECDBF2',

packages/theme/src/index.ts

@@ -15,4 +15,4 @@
  */
 export { default as BackstageThemeLight } from './BackstageThemeLight';
 export { default as BackstageThemeDark } from './BackstageThemeDark';
-export { default as BackstageTheme, COLORS } from './BackstageTheme';
+export { default as BackstageTheme } from './BackstageTheme';