Index: trunk/resources/data/maps.xsd
===================================================================
--- trunk/resources/data/maps.xsd	(revision 17851)
+++ trunk/resources/data/maps.xsd	(revision 17862)
@@ -39,4 +39,5 @@
             <xs:enumeration value="wmts" />
             <xs:enumeration value="tms" />
+            <xs:enumeration value="mvt" />
             <xs:enumeration value="bing" />
             <xs:enumeration value="scanex" />
@@ -648,5 +649,5 @@
                             <!-- Historic id for the imagery source -->
                             <xs:element name="oldid" minOccurs="0" maxOccurs="unbounded" type="tns:oldid" />
-                            <!-- The type. Can be tms, wms and html. In addition, there are the special types bing and scanex 
+                            <!-- The type. Can be mvt, tms, wms and html. In addition, there are the special types bing and scanex
                                 with hardcoded behaviour. -->
                             <xs:element name="type" minOccurs="1" maxOccurs="1" type="tns:type" />
Index: trunk/resources/images/dialogs/add_mvt.svg
===================================================================
--- trunk/resources/images/dialogs/add_mvt.svg	(revision 17862)
+++ trunk/resources/images/dialogs/add_mvt.svg	(revision 17862)
@@ -0,0 +1,147 @@
+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+<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="http://www.w3.org/2000/svg"
+        xmlns:xlink="http://www.w3.org/1999/xlink"
+        xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
+        xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
+        width="24"
+        height="24"
+        viewBox="0 0 24 24"
+        id="svg2"
+        version="1.1"
+        inkscape:version="1.0.1 (c497b03c, 2020-09-10)"
+        sodipodi:docname="add_mvt.svg">
+  <defs
+     id="defs4">
+    <linearGradient
+       gradientTransform="translate(4)"
+       gradientUnits="userSpaceOnUse"
+       y2="1049.3622"
+       x2="12"
+       y1="1041.3622"
+       x1="4"
+       id="linearGradient868"
+       xlink:href="#linearGradient866"
+       inkscape:collect="always" />
+    <linearGradient
+       id="linearGradient866"
+       inkscape:collect="always">
+      <stop
+         id="stop862"
+         offset="0"
+         style="stop-color:#dfdfdf;stop-opacity:1" />
+      <stop
+         id="stop864"
+         offset="1"
+         style="stop-color:#949593;stop-opacity:1" />
+    </linearGradient>
+  </defs>
+  <sodipodi:namedview
+     id="base"
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1.0"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:zoom="45.254834"
+     inkscape:cx="11.376506"
+     inkscape:cy="17.057298"
+     inkscape:document-units="px"
+     inkscape:current-layer="layer1"
+     showgrid="true"
+     units="px"
+     inkscape:window-width="1920"
+     inkscape:window-height="955"
+     inkscape:window-x="0"
+     inkscape:window-y="23"
+     inkscape:window-maximized="1"
+     viewbox-height="16"
+     inkscape:document-rotation="0">
+    <inkscape:grid
+       type="xygrid"
+       id="grid4136"
+       originx="0"
+       originy="0"
+       spacingx="1"
+       spacingy="1" />
+  </sodipodi:namedview>
+  <metadata
+     id="metadata7">
+    <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></dc:title>
+        <cc:license
+           rdf:resource="http://creativecommons.org/publicdomain/zero/1.0/" />
+      </cc:Work>
+      <cc:License
+         rdf:about="http://creativecommons.org/publicdomain/zero/1.0/">
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#Reproduction" />
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#Distribution" />
+        <cc:permits
+           rdf:resource="http://creativecommons.org/ns#DerivativeWorks" />
+      </cc:License>
+    </rdf:RDF>
+  </metadata>
+  <g
+     inkscape:label="Layer 1"
+     inkscape:groupmode="layer"
+     id="layer1"
+     transform="translate(0,-1037.3622)">
+    <rect
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+       y="1043.8622"
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+       height="3"
+       width="13"
+       id="rect833"
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+       id="path852"
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+       style="fill:url(#linearGradient868);fill-opacity:1;stroke:none;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1" />
+    <path
+       style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:round;stroke-opacity:1"
+       d="m 4.5,1060.3625 v -7.5948 l 2,4.3971 2,-4.3971 v 7.5948"
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+       sodipodi:nodetypes="ccccc" />
+    <path
+       style="fill:none;stroke:#000000;stroke-width:1px;stroke-linecap:butt;stroke-linejoin:miter;stroke-opacity:1"
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+       id="path896" />
+    <path
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+       id="path898" />
+    <text
+       xml:space="preserve"
+       style="font-style:normal;font-variant:normal;font-weight:bold;font-stretch:normal;font-size:9.3042px;line-height:1.25;font-family:sans-serif;-inkscape-font-specification:'sans-serif, Bold';font-variant-ligatures:normal;font-variant-caps:normal;font-variant-numeric:normal;font-variant-east-asian:normal;fill:#000000;fill-opacity:1;fill-rule:nonzero;stroke:none;stroke-width:0.894202;stroke-miterlimit:4;stroke-dasharray:none"
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+</svg>