Using alias actor ID when available. Using basic SVG flags instead of PNG. Moved PNG and HD SVG flags to assets.

public/img/flags/sy.svg

@@ -1,6 +1,135 @@
-<svg xmlns="http://www.w3.org/2000/svg" id="flag-icon-css-sy" viewBox="0 0 640 480">
-  <rect width="640" height="160" y="160" fill="#fff" fill-rule="evenodd" rx="0" ry="0"/>
-  <rect width="640" height="160" y="320" fill-rule="evenodd" rx="0" ry="0"/>
-  <path fill="red" fill-rule="evenodd" d="M0 0h640v160H0z"/>
-  <path fill="#090" fill-rule="evenodd" d="M201.9 281l-28.8-20.9-28.7 21.1 10.7-34.2-28.7-21.2 35.4-.3 11-34.1 11.3 34h35.4L191 246.9l10.9 34.2zm307.6 0l-28.8-20.9-28.7 21.1 10.7-34.2-28.6-21.2 35.4-.3 11-34.1 11.2 34h35.4l-28.5 21.4 11 34.2z"/>
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+<svg
+   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"
+   xmlns="http://www.w3.org/2000/svg"
+   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+   inkscape:version="1.0 (4035a4fb49, 2020-05-01)"
+   height="341.33701"
+   width="512"
+   sodipodi:docname="sy.svg"
+   xml:space="preserve"
+   viewBox="0 0 512 341.33701"
+   y="0px"
+   x="0px"
+   id="Capa_1"
+   version="1.1"><metadata
+   id="metadata13213"><rdf:RDF><cc:Work
+       rdf:about=""><dc:format>image/svg+xml</dc:format><dc:type
+         rdf:resource="http://purl.org/dc/dcmitype/StillImage" /></cc:Work></rdf:RDF></metadata><defs
+   id="defs13211" /><sodipodi:namedview
+   inkscape:current-layer="Capa_1"
+   inkscape:window-maximized="0"
+   inkscape:window-y="0"
+   inkscape:window-x="0"
+   inkscape:cy="170.669"
+   inkscape:cx="256"
+   inkscape:zoom="1.6386719"
+   showgrid="false"
+   id="namedview13209"
+   inkscape:window-height="1020"
+   inkscape:window-width="1485"
+   inkscape:pageshadow="2"
+   inkscape:pageopacity="0"
+   guidetolerance="10"
+   gridtolerance="10"
+   objecttolerance="10"
+   borderopacity="1"
+   bordercolor="#666666"
+   pagecolor="#ffffff" />
+<rect
+   x="0"
+   id="rect13166"
+   height="341.33701"
+   width="512"
+   style="fill:#f0f0f0"
+   y="0" />
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+   x="0"
+   id="rect13168"
+   height="113.775"
+   width="512"
+   style="fill:#d80027"
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+   id="polygon13172"
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+   id="polygon13174"
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 </svg>