Issue on defaultText after changing theme to Blur Theme

[3rdelpi]

I set this in theme.config.js:

function config(baConfigProvider, colorHelper, $provide) {

$provide.decorator('$uiViewScroll', uiViewScrollDecorator);
baConfigProvider.changeTheme({blur: true});    
baConfigProvider.changeColors({
  default: 'rgba(#000000, 0.2)',
  defaultText: '#ffffff',
  dashboard: {
    white: '#ffffff',
  },
});

}

However the text didn't change to white. I've been trying to find some solutions but I can't find one related to this issue.

[3rdelpi]

Ps. This is the folder hierarchy. Thanks for your help :)