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import {loadCSSVariablesFallback, replaceColors, Theme} from '@datorama/themify/utils';
import palette from 'path_to_my_json_pallete';

/** fallback for CSS variables support */
const themeCSSFallback = 'path/theme_fallback.css';
const themeJSONFallback = 'path/theme_fallback.json';

export class MyThemeService {
	
  constructor(){
    /**
    * load the CSS fallback file, in case the browser do not support CSS Variables.
    * Required only if you set screwIE11 option to false. 
    *
    * callback - load event for the CSS file
    */
    loadCSSVariablesFallback(themeCSSFallback, callback);	
  }

  /**  
   * Replace the theme colors at runtime 
   * @param partialTheme a partial theme configuration.  
   */
   setColors(partialTheme: Theme){
     replaceColors(themeJSONFallback, partialTheme, palette);
   }

}