balloonTag property
Implementation
String get balloonTag => '''
<ScreenOverlay id="$overlayID">
<name>$name</name>
<overlayXY x="$overlayX" y="$overlayY" xunits="fraction" yunits="fraction"/>
<screenXY x="$screenX" y="$screenY" xunits="fraction" yunits="fraction"/>
<rotationXY x="0" y="0" xunits="fraction" yunits="fraction"/>
<size x="$sizeX" y="$sizeY" xunits="fraction" yunits="fraction"/>
<description>
<![CDATA[
$content
]]>
</description>
<gx:balloonVisibility>1</gx:balloonVisibility>
</ScreenOverlay>
''';