highlight in directory now is optional runtime plugin to KIO, several more file managers to fallback, refactor, 2 new icons

resources/images/fallback/dark/big/document-preview.svg

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+<!DOCTYPE svg>
+<svg viewBox="0 0 22 22" version="1.1" xmlns="http://www.w3.org/2000/svg">
+    <defs>
+        <style type="text/css" id="current-color-scheme">
+            .ColorScheme-Text {
+                color:#232629;
+            }
+        </style>
+    </defs>
+    <path class="ColorScheme-Text" style="fill:currentColor; fill-opacity:1; stroke:none" d="M 4 3 L 4 19 L 15 19 L 15 18 L 5 18 L 5 4 L 13 4 L 13 8 L 17 8 L 17 16 L 18 16 L 18 7 L 14 3 L 4 3 Z M 13 11 C 11.338 11 10 12.338 10 14 C 10 15.662 11.338 17 13 17 C 13.6494 17 14.2464 16.7914 14.7363 16.4434 L 17.293 19 L 18 18.293 L 15.4434 15.7363 C 15.7914 15.2464 16 14.6494 16 14 C 16 12.338 14.662 11 13 11 Z M 13 12 C 14.108 12 15 12.892 15 14 C 15 15.108 14.108 16 13 16 C 11.892 16 11 15.108 11 14 C 11 12.892 11.892 12 13 12 Z"/>
+</svg>

resources/images/fallback/dark/big/folder.svg

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+<?xml version="1.0" encoding="UTF-8" standalone="no"?>
+
+<!-- Created with Inkscape (http://www.inkscape.org/) -->
+<svg width="32" version="1.1" xmlns="http://www.w3.org/2000/svg" height="32" viewBox="0 0 32 32" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape">
+ <defs id="defs5455">
+  <linearGradient inkscape:collect="always" id="linearGradient4172-5">
+   <stop style="stop-color:#3daee9" id="stop4174-6"/>
+   <stop offset="1" style="stop-color:#6cc1ef" id="stop4176-6"/>
+  </linearGradient>
+  <linearGradient inkscape:collect="always" xlink:href="#linearGradient4172-5" id="linearGradient4342" y1="29" y2="8" x2="0" gradientUnits="userSpaceOnUse"/>
+ </defs>
+ <metadata id="metadata5458"/>
+ <g inkscape:label="Capa 1" inkscape:groupmode="layer" id="layer1" transform="matrix(1 0 0 1 -384.57143 -515.798)">
+  <path inkscape:connector-curvature="0" style="fill:#147eb8;fill-rule:evenodd" id="path4308" d="m 386.57144,518.798 0,7 0,1 28,0 0,-6 -14.00001,0 -2,-2 z"/>
+  <path inkscape:connector-curvature="0" style="fill-opacity:0.235294;fill-rule:evenodd" id="path4306" d="m 397.57143,523.798 -1.99999,1 -9,0 0,1 6.99999,0 3,0 z"/>
+  <path style="fill:url(#linearGradient4342)" id="rect4294" d="M 13 8 L 11 10 L 2 10 L 1 10 L 1 29 L 12 29 L 13 29 L 31 29 L 31 8 L 13 8 z " transform="matrix(1 0 0 1 384.57143 515.798)"/>
+  <path inkscape:connector-curvature="0" style="fill:#ffffff;fill-opacity:0.235294;fill-rule:evenodd" id="path4304" d="m 397.57143,523.798 -2,2 -10,0 0,1 11,0 z"/>
+  <path inkscape:connector-curvature="0" style="fill:#ffffff;fill-opacity:0.235294;fill-rule:evenodd" id="path4310" d="m 398.57143,518.798 1,3 15.00001,0 0,-1 -14.00001,0 z"/>
+  <rect width="30" x="385.57144" y="543.79797" height="1" style="fill-opacity:0.235294" id="rect4292"/>
+ </g>
+</svg>