diff --git a/assets/symbols/hill_BWgradient2_AD.svg b/assets/symbols/hill_BWgradient2_AD.svg
deleted file mode 100644
index 47624c8..0000000
--- a/assets/symbols/hill_BWgradient2_AD.svg
+++ /dev/null
@@ -1,42 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg width="100%" height="100%" viewBox="0 0 2550 2550" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2;">
-    <g id="hill" transform="matrix(1.76728,0,0,1.76728,-1168.82,-1229.96)">
-        <path d="M1382.81,1068.32C1735.84,1063.23 2067.96,1400.41 2067.96,1753.47C2067.96,1756.73 697.665,1756.73 697.665,1753.47C697.665,1400.41 1029.79,1073.42 1382.81,1068.32Z" style="fill:url(#_Radial1);"/>
-    </g>
-    <g id="specs" transform="matrix(1.76728,0,0,1.76728,-980.121,-1650.41)">
-        <g transform="matrix(1.97904,0,0,1.97904,563.583,1026.75)">
-            <rect x="260.795" y="260.795" width="198.41" height="198.41" style="fill:rgb(255,0,255);"/>
-        </g>
-        <g transform="matrix(1.97904,0,0,1.97904,563.583,658.898)">
-            <path d="M360,662.708C360.001,662.711 372.432,697.517 372.433,697.521C372.432,697.52 360.001,685.954 360,685.952C359.999,685.954 347.568,697.52 347.567,697.521C347.568,697.517 359.999,662.711 360,662.708Z" style="fill:rgb(255,0,0);"/>
-        </g>
-        <g transform="matrix(1.97904,0,0,1.97904,563.583,1226.66)">
-            <path d="M360,17.772C360.001,17.774 367.221,37.992 367.222,37.994C367.221,37.993 360.001,31.275 360,31.274C359.999,31.275 352.779,37.993 352.778,37.994C352.779,37.992 359.999,17.774 360,17.772Z" style="fill:rgb(0,0,255);"/>
-        </g>
-        <g transform="matrix(1.97904,0,0,1.97904,563.583,1026.75)">
-            <path d="M18.397,361.004C18.399,361.003 38.581,353.68 38.583,353.679C38.582,353.68 31.9,360.935 31.9,360.935C31.9,360.936 38.655,368.122 38.656,368.123C38.654,368.122 18.399,361.004 18.397,361.004Z" style="fill:rgb(0,255,0);"/>
-        </g>
-        <g transform="matrix(1.97904,0,0,1.97904,559.576,838.892)">
-            <path d="M117.702,603.499C117.703,603.497 126.664,583.988 126.664,583.986C126.664,583.987 127.136,593.839 127.136,593.84C127.137,593.84 136.997,594.078 136.998,594.078C136.996,594.079 117.704,603.498 117.702,603.499Z" style="fill:rgb(255,255,0);"/>
-        </g>
-        <g transform="matrix(1.97904,0,0,1.97904,563.583,868.775)">
-            <path d="M602.298,603.26C602.297,603.258 592.947,583.932 592.946,583.93C592.946,583.931 592.672,593.791 592.672,593.792C592.671,593.792 582.818,594.228 582.817,594.228C582.819,594.229 602.296,603.259 602.298,603.26Z" style="fill:rgb(255,255,0);"/>
-        </g>
-        <g transform="matrix(1.97904,0,0,1.97904,563.583,1026.75)">
-            <path d="M701.603,361.004C701.601,361.003 681.419,353.68 681.417,353.679C681.418,353.68 688.1,360.935 688.1,360.935C688.1,360.936 681.345,368.122 681.344,368.123C681.346,368.122 701.601,361.004 701.603,361.004Z" style="fill:rgb(0,255,0);"/>
-        </g>
-        <g transform="matrix(1.77778,0,0,1.77778,636.048,1206.57)">
-            <path d="M601.361,117.716C601.361,117.718 594.193,137.955 594.193,137.957C594.193,137.956 592.835,128.187 592.835,128.186C592.834,128.186 582.993,128.836 582.992,128.836C582.994,128.835 601.359,117.717 601.361,117.716Z" style="fill:rgb(0,255,255);"/>
-        </g>
-        <g transform="matrix(1.77778,0,0,1.77778,636.048,1206.57)">
-            <path d="M118.75,118.386C118.751,118.388 127.252,138.103 127.253,138.105C127.253,138.104 127.956,128.266 127.956,128.265C127.957,128.265 137.819,128.257 137.82,128.257C137.818,128.256 118.752,118.387 118.75,118.386Z" style="fill:rgb(0,255,255);"/>
-        </g>
-        <g transform="matrix(1.97904,0,0,1.97904,563.583,817.325)">
-            <path d="M360,618.808C360.001,618.804 372.432,583.998 372.433,583.995C372.432,583.996 360.001,595.562 360,595.563C359.999,595.562 347.568,583.996 347.567,583.995C347.568,583.998 359.999,618.804 360,618.808Z" style="fill:rgb(190,0,39);"/>
-        </g>
-    </g>
-    <defs>
-        <radialGradient id="_Radial1" cx="0" cy="0" r="1" gradientUnits="userSpaceOnUse" gradientTransform="matrix(1007.29,0,0,1007.29,1379.62,1757.36)"><stop offset="0" style="stop-color:white;stop-opacity:1"/><stop offset="0.49" style="stop-color:rgb(189,189,189);stop-opacity:1"/><stop offset="1" style="stop-color:black;stop-opacity:1"/></radialGradient>
-    </defs>
-</svg>
diff --git a/assets/symbols/hill_BWgradient_AD.svg b/assets/symbols/hill_BWgradient_AD.svg
deleted file mode 100644
index c90bfe6..0000000
--- a/assets/symbols/hill_BWgradient_AD.svg
+++ /dev/null
@@ -1,44 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
-<svg width="100%" height="100%" viewBox="0 0 1371 801" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" xmlns:serif="http://www.serif.com/" style="fill-rule:evenodd;clip-rule:evenodd;stroke-linejoin:round;stroke-miterlimit:2;">
-    <g transform="matrix(1,0,0,1,-589.853,-1261.83)">
-        <g id="hill" transform="matrix(1,0,0,1,-107.812,237.91)">
-            <path d="M1382.81,1068.32C1735.84,1063.23 2067.96,1400.41 2067.96,1753.47C2067.96,1756.73 697.665,1756.73 697.665,1753.47C697.665,1400.41 1029.79,1073.42 1382.81,1068.32Z" style="fill:url(#_Radial1);"/>
-        </g>
-        <g id="specs" transform="matrix(1,0,0,1,-1.03883,0)">
-            <g transform="matrix(1.97904,0,0,1.97904,563.583,1026.75)">
-                <rect x="260.795" y="260.795" width="198.41" height="198.41" style="fill:rgb(255,0,255);"/>
-            </g>
-            <g transform="matrix(1.97904,0,0,1.97904,563.583,658.898)">
-                <path d="M360,662.708C360.001,662.711 372.432,697.517 372.433,697.521C372.432,697.52 360.001,685.954 360,685.952C359.999,685.954 347.568,697.52 347.567,697.521C347.568,697.517 359.999,662.711 360,662.708Z" style="fill:rgb(255,0,0);"/>
-            </g>
-            <g transform="matrix(1.97904,0,0,1.97904,563.583,1226.66)">
-                <path d="M360,17.772C360.001,17.774 367.221,37.992 367.222,37.994C367.221,37.993 360.001,31.275 360,31.274C359.999,31.275 352.779,37.993 352.778,37.994C352.779,37.992 359.999,17.774 360,17.772Z" style="fill:rgb(0,0,255);"/>
-            </g>
-            <g transform="matrix(1.97904,0,0,1.97904,563.583,1026.75)">
-                <path d="M18.397,361.004C18.399,361.003 38.581,353.68 38.583,353.679C38.582,353.68 31.9,360.935 31.9,360.935C31.9,360.936 38.655,368.122 38.656,368.123C38.654,368.122 18.399,361.004 18.397,361.004Z" style="fill:rgb(0,255,0);"/>
-            </g>
-            <g transform="matrix(1.97904,0,0,1.97904,559.576,838.892)">
-                <path d="M117.702,603.499C117.703,603.497 126.664,583.988 126.664,583.986C126.664,583.987 127.136,593.839 127.136,593.84C127.137,593.84 136.997,594.078 136.998,594.078C136.996,594.079 117.704,603.498 117.702,603.499Z" style="fill:rgb(255,255,0);"/>
-            </g>
-            <g transform="matrix(1.97904,0,0,1.97904,563.583,868.775)">
-                <path d="M602.298,603.26C602.297,603.258 592.947,583.932 592.946,583.93C592.946,583.931 592.672,593.791 592.672,593.792C592.671,593.792 582.818,594.228 582.817,594.228C582.819,594.229 602.296,603.259 602.298,603.26Z" style="fill:rgb(255,255,0);"/>
-            </g>
-            <g transform="matrix(1.97904,0,0,1.97904,563.583,1026.75)">
-                <path d="M701.603,361.004C701.601,361.003 681.419,353.68 681.417,353.679C681.418,353.68 688.1,360.935 688.1,360.935C688.1,360.936 681.345,368.122 681.344,368.123C681.346,368.122 701.601,361.004 701.603,361.004Z" style="fill:rgb(0,255,0);"/>
-            </g>
-            <g transform="matrix(1.77778,0,0,1.77778,636.048,1206.57)">
-                <path d="M601.361,117.716C601.361,117.718 594.193,137.955 594.193,137.957C594.193,137.956 592.835,128.187 592.835,128.186C592.834,128.186 582.993,128.836 582.992,128.836C582.994,128.835 601.359,117.717 601.361,117.716Z" style="fill:rgb(0,255,255);"/>
-            </g>
-            <g transform="matrix(1.77778,0,0,1.77778,636.048,1206.57)">
-                <path d="M118.75,118.386C118.751,118.388 127.252,138.103 127.253,138.105C127.253,138.104 127.956,128.266 127.956,128.265C127.957,128.265 137.819,128.257 137.82,128.257C137.818,128.256 118.752,118.387 118.75,118.386Z" style="fill:rgb(0,255,255);"/>
-            </g>
-            <g transform="matrix(1.97904,0,0,1.97904,563.583,817.325)">
-                <path d="M360,618.808C360.001,618.804 372.432,583.998 372.433,583.995C372.432,583.996 360.001,595.562 360,595.563C359.999,595.562 347.568,583.996 347.567,583.995C347.568,583.998 359.999,618.804 360,618.808Z" style="fill:rgb(190,0,39);"/>
-            </g>
-        </g>
-    </g>
-    <defs>
-        <radialGradient id="_Radial1" cx="0" cy="0" r="1" gradientUnits="userSpaceOnUse" gradientTransform="matrix(1007.29,0,0,1007.29,1379.62,1757.36)"><stop offset="0" style="stop-color:white;stop-opacity:1"/><stop offset="0.49" style="stop-color:rgb(189,189,189);stop-opacity:1"/><stop offset="1" style="stop-color:black;stop-opacity:1"/></radialGradient>
-    </defs>
-</svg>