add icons for new matrix spaces

* Orange (#FF8F23) and Blue (#4FBAD5)
* work at 240px
* assert Apache-2.0 in metadata

static/icons/history-line.svg

@@ -1,6 +1,65 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-    <g>
-        <path fill="none" d="M0 0H24V24H0z"/>
-        <path d="M12 2c5.523 0 10 4.477 10 10s-4.477 10-10 10S2 17.523 2 12h2c0 4.418 3.582 8 8 8s8-3.582 8-8-3.582-8-8-8C9.25 4 6.824 5.387 5.385 7.5H8v2H2v-6h2V6c1.824-2.43 4.729-4 8-4zm1 5v4.585l3.243 3.243-1.415 1.415L11 12.413V7h2z"/>
-    </g>
+<?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: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"
+   viewBox="0 0 24 24"
+   width="240"
+   height="240"
+   version="1.1"
+   id="svg6"
+   sodipodi:docname="history-line.svg"
+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)">
+  <metadata
+     id="metadata12">
+    <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="https://www.apache.org/licenses/LICENSE-2.0.txt" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs10" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1680"
+     inkscape:window-height="1021"
+     id="namedview8"
+     showgrid="false"
+     inkscape:zoom="0.98333333"
+     inkscape:cx="-75.254236"
+     inkscape:cy="115.9322"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg6" />
+  <path
+     fill="none"
+     d="M0 0H24V24H0z"
+     id="path2" />
+  <path
+     style="fill:#4fbad5;fill-opacity:1"
+     d="M 12,2 C 17.523,2 22,6.477 22,12 22,17.523 17.523,22 12,22 6.477,22 2,17.523 2,12 h 2 c 0,4.418 3.582,8 8,8 4.418,0 8,-3.582 8,-8 C 20,7.582 16.418,4 12,4 9.25,4 6.824,5.387 5.385,7.5 H 8 v 2 H 2 v -6 H 4 V 6 C 5.824,3.57 8.729,2 12,2 Z"
+     id="path824" />
+  <path
+     style="fill:#ff8f23;fill-opacity:1"
+     d="m 13,7 v 4.585 l 3.243,3.243 -1.415,1.415 L 11,12.413 V 7 Z"
+     id="path4" />
 </svg>

static/icons/tools-line.svg

@@ -1,6 +1,72 @@
-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
-    <g>
-        <path fill="none" d="M0 0h24v24H0z"/>
-        <path d="M5.33 3.271a3.5 3.5 0 0 1 4.254 4.963l10.709 10.71-1.414 1.414-10.71-10.71a3.502 3.502 0 0 1-4.962-4.255L5.444 7.63a1.5 1.5 0 1 0 2.121-2.121L5.329 3.27zm10.367 1.884l3.182-1.768 1.414 1.414-1.768 3.182-1.768.354-2.12 2.121-1.415-1.414 2.121-2.121.354-1.768zm-6.718 8.132l1.414 1.414-5.303 5.303a1 1 0 0 1-1.492-1.327l.078-.087 5.303-5.303z"/>
-    </g>
+<?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: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"
+   viewBox="0 0 24 24"
+   width="240"
+   height="240"
+   version="1.1"
+   id="svg6"
+   sodipodi:docname="tools-line.svg"
+   inkscape:export-filename="/home/emorrp1/downloads/tools-line.png"
+   inkscape:export-xdpi="96"
+   inkscape:export-ydpi="96"
+   inkscape:version="0.92.4 (5da689c313, 2019-01-14)">
+  <metadata
+     id="metadata12">
+    <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="https://www.apache.org/licenses/LICENSE-2.0.txt" />
+      </cc:Work>
+    </rdf:RDF>
+  </metadata>
+  <defs
+     id="defs10" />
+  <sodipodi:namedview
+     pagecolor="#ffffff"
+     bordercolor="#666666"
+     borderopacity="1"
+     objecttolerance="10"
+     gridtolerance="10"
+     guidetolerance="10"
+     inkscape:pageopacity="0"
+     inkscape:pageshadow="2"
+     inkscape:window-width="1680"
+     inkscape:window-height="1021"
+     id="namedview8"
+     showgrid="false"
+     inkscape:zoom="0.98333333"
+     inkscape:cx="-75.254236"
+     inkscape:cy="115.9322"
+     inkscape:window-x="0"
+     inkscape:window-y="0"
+     inkscape:window-maximized="1"
+     inkscape:current-layer="svg6" />
+  <path
+     fill="none"
+     d="M0 0h24v24H0z"
+     id="path2" />
+  <path
+     d="M 5.33,3.271 A 3.5,3.5 0 0 1 9.584,8.234 L 20.293,18.944 18.879,20.358 8.169,9.648 A 3.502,3.502 0 0 1 3.207,5.393 L 5.444,7.63 A 1.5,1.5 0 1 0 7.565,5.509 L 5.329,3.27 Z"
+     id="path826"
+     style="fill:#ff8f23;fill-opacity:1" />
+  <path
+     d="m 15.697,5.155 3.182,-1.768 1.414,1.414 -1.768,3.182 -1.768,0.354 -2.12,2.121 -1.415,-1.414 2.121,-2.121 z"
+     id="path824"
+     style="fill:#4fbad5;fill-opacity:1" />
+  <path
+     d="m 8.979,13.287 1.414,1.414 -5.303,5.303 A 1,1 0 0 1 3.598,18.677 L 3.676,18.59 Z"
+     id="path4"
+     style="fill:#4fbad5;fill-opacity:1" />
 </svg>