From OpenSCADAWiki
XML-Tree of the visual elements allowed to place in the root node, placed visual items in the visual elements and sources with constants in the visual items.
<vEls>
<el id='Main.anShow' wId="aShw" geom="100-1:40-1"
lnkAttrs='pVal-var'
constAttrs='pName-;pPrec-;pErr-;pDscr-;pModeA-;pModeC-;spName;redEVAL'>
<it id='aShw_1' geom="100:40" pos="0:0">
<src id="LogicLev.gen.prm_F3" />
<const id="pName" isLnk="1" lnk="prm:/LogicLev/gen/F3/NAME (+)">Test</const>
</it>
</el>
<el id="Main.TextLab" wId="txtLb" geom="60-1:22-1"
lnkAttrs="st_open;st_close;st_text;com;close;com_text"
constAttrs="digStts-;digComs-;NAME-;err-;DESCR-">
<it id="txtLb_1" geom="100:22" pos="10:10">
<src id="LogicLev.gen.prm_BC6close" sAttr="a_st_open" vAttr="st_open" />
<src id="LogicLev.gen.prm_BC6close" sAttr="a_st_close" vAttr="st_close" />
</it>
</el>
<el id="originals.Text" wId="txt" geom="100:20" preset="color=red;" resize="1"
constAttrs="*text;*alignment;*font;*color;*orient">
<it id="txt_2" geom="100:20" pos="0:50">
<const id="*text" isLnk="0">Text label</const>
<const id="*color" isLnk="0">blue</const>
</it>
</el>
</vEls>