public FormattedCharacterBuffer setBackgroundColor(Color background) {
    for (int index = 0; index < numberOfLinesInBuffer * numberOfColumnsInBuffer; index++) {
      perCharBackgroundColor[index] = background;
    }
    return this;
  }
Create a single-line formatted character buffer. Newlines are converted to underscores.
java/zylib/src/main/java/com/google/security/zynamics/zylib/gui/CodeDisplay/FormattedCharacterBuffer.java