关于原生dialog修改button颜色值和背景颜色

原生的dialog比较丑，需要设置dialog的字体颜色，框的背景颜色和button的颜色

 AlertDialog dialog = new AlertDialog.Builder(this, AlertDialog.THEME_HOLO_LIGHT)
                .setIcon(R.mipmap.info_commit_ok)
                .setTitle(getResources().getString(R.string.info_commit_success))
                .setMessage(R.string.register_result)
                .setPositiveButton("确定", new OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub
                dialog.cancel();
                startActivity(LoginActivity.class);
                finish();
            }
        }).create();
        dialog.setOnShowListener(new DialogInterface.OnShowListener() {
            @Override
            public void onShow(DialogInterface dialog) {                    //
                Button positiveButton = ((AlertDialog) dialog)
                        .getButton(AlertDialog.BUTTON_POSITIVE);
                positiveButton.setBackgroundColor(getResources().getColor(R.color.main_color));
                positiveButton.setTextColor(Color.WHITE);
            }
        });
        dialog.show();