code: public SuperActivityToast setProgressBarColor(@ColorInt int progressBarColor) {
          if (android.os.Build.VERSION.SDK_INT < Build.VERSION_CODES.LOLLIPOP) {
              Log.w(getClass().getName(), "SuperActivityToast.setProgressBarColor() requires API " +
                      "21 or newer.");
              return this;
          }
          this.mStyle.progressBarColor = progressBarColor;
          return this;
      }
docs: REQUIRES API 21
  
  Set the progress color of the ProgressBar in a TYPE_PROGRESS_BAR SuperActivityToast.
  
  @param progressBarColor The desired progress color
  @return The current SuperActivityToast instance