SVGHMI: Behave when project path include spaces, and make more understandable error in case of problem extracting geometry with inkscape.
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xmlns:dc="http://purl.org/dc/elements/1.1/"
xmlns:cc="http://creativecommons.org/ns#"
xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
xmlns:svg="http://www.w3.org/2000/svg"
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height="720"
viewBox="0 0 1280 720"
version="1.1"
id="hmi0"
sodipodi:docname="default.svg"
inkscape:version="0.92.3 (2405546, 2018-03-11)">
<metadata
id="metadata4542">
<rdf:RDF>
<cc:Work
rdf:about="">
<dc:format>image/svg+xml</dc:format>
<dc:type
rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
<dc:title />
</cc:Work>
</rdf:RDF>
</metadata>
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id="defs2" />
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id="base"
pagecolor="#ffffff"
bordercolor="#666666"
borderopacity="1.0"
inkscape:pageopacity="0"
inkscape:pageshadow="2"
inkscape:document-units="px"
inkscape:current-layer="hmi0"
showgrid="false"
units="px"
inkscape:zoom="0.7"
inkscape:cx="576.80864"
inkscape:cy="330.28432"
inkscape:window-width="1600"
inkscape:window-height="886"
inkscape:window-x="0"
inkscape:window-y="27"
inkscape:window-maximized="1" />
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style="color:#000000"
id="page0"
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<desc
id="desc_page0">This is description for page 0
all lines in the form "name: value"
are used as js object definition initializer
role: "page"
name: "Home"
after triple opening braces is global JavaScript code
{{{
/* JS style Comment */
alert("Hello World");
}}}
after triple closing braces is back to description
</desc>
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xml:space="preserve"
style="font-style:normal;font-weight:normal;font-size:160px;line-height:125%;font-family:sans-serif;letter-spacing:0px;word-spacing:0px;fill:#ffffff;fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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inkscape:label="count"><desc
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format: "%4.4d"</desc><tspan
sodipodi:role="line"
id="tspan5149"
x="436.32812"
y="418.24219"
style="stroke-width:1px">8888</tspan></text>
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