text: import { createMuiTheme } from 'material-ui/styles';
  import green from 'material-ui/colors/green';
  import pink from 'material-ui/colors/pink';
  import red from 'material-ui/colors/red';
  // import indigo from 'material-ui/colors/indigo';
  // import purple from 'material-ui/colors/purple';
  
  
  // All the following keys are optional.
  // We try our best to provide a great default value.
  export  default createMuiTheme({
    overrides: {
      MuiButton: {
        // Name of the styleSheet
        root: {
          // Name of the rule
          background: 'linear-gradient(45deg, #64e87b 30%, #49d896 90%)',
          borderRadius: 3,
          border: 0,
          color: 'white',
          padding: '0 30px',
          // boxShadow: '0 3px 5px 2px rgba(255, 105, 135, .30)',
        },
      },
    },
    palette: {
      primary: {
        light:green.A700,
        main: green.A700,
        dark: green.A700,
        contrastText: '#fff',
      },
      secondary: pink,
      error: red,
      // Used by `getContrastText()` to maximize the contrast between the background and
      // the text.
      // contrastThreshold: 3,
      // Used to shift a color's luminance by approximately
      // two indexes within its tonal palette.
      // E.g., shift from Red 500 to Red 300 or Red 700.
      // tonalOffset: 0.2,
    },
  });