actually it's closed by `DocumentBuilder.parse` in [ColorThemeManager.java#134](https://github.com/davispuh/eclipse-color-theme/blob/e29b54734c2c6b8cb6c9c7c95ef7280da94ff042/com.github.eclipsecolortheme/src/com/github/eclipsecolortheme/ColorThemeManager.java#L134) But probably better be safe than so sorry, so will explicitly close it.