private String getBaseTheme() {
		if( baseTheme == null )
			baseTheme = getProperties().getProperty( "@baseTheme", "light" );
		return baseTheme;
	}
Supports parsing content of text area in FlatLaf properties syntax.

@author Karl Tauber
flatlaf-theme-editor/src/main/java/com/formdev/flatlaf/themeeditor/FlatThemePropertiesSupport.java