@Override
  public String toString() {
    return getText();
  }
Changes the text color of a part of the line.

@param position The index of the first character that gets the new font color.
@param length Number of characters that get the new font color.
@param color The new text color.
java/zylib/src/main/java/com/google/security/zynamics/zylib/gui/zygraph/realizers/ZyLineContent.java