diff --git a/doc/grid.png b/doc/grid.png
index ea42945..c741886 100644
Binary files a/doc/grid.png and b/doc/grid.png differ
diff --git a/icons/icons.svg b/icons/icons.svg
index f38e342..6c980b9 100644
--- a/icons/icons.svg
+++ b/icons/icons.svg
@@ -168,12 +168,12 @@
      inkscape:object-paths="true"
      inkscape:guide-bbox="true"
      showguides="false"
-     showgrid="true"
+     showgrid="false"
      inkscape:document-units="px"
      inkscape:current-layer="layer1"
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-     inkscape:cx="21.716946"
-     inkscape:zoom="11.313708"
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+     inkscape:zoom="16"
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@@ -184,7 +184,7 @@
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      inkscape:snap-bbox-edge-midpoints="true"
      inkscape:snap-bbox-midpoints="false"
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@@ -3437,14 +3437,11 @@
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-       style="fill:#000000;stroke:none">
+       style="fill:#000000;stroke:none"
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+       id="staircase">
       <title
-         id="title7882">door with stairs</title>
+         id="title18692">door with stairs</title>
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@@ -6530,21 +6527,21 @@
     <circle
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@@ -11418,7 +11415,7 @@
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+       transform="matrix(-1,0,0,1,367,0)"
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@@ -11427,7 +11424,7 @@
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        xlink:href="#path6227"
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+       transform="matrix(-1,0,0,1,367,-3)"
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        height="100%"
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@@ -15937,5 +15934,267 @@
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+    <circle
+       style="opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+       id="circle18668"
+       cx="37.5"
+       cy="425.5"
+       r="1.5" />
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+       r="1.5"
+       cy="425.5"
+       cx="41.5"
+       id="circle18670"
+       style="opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1" />
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+       r="1.5"
+       cy="422.5"
+       cx="35.5"
+       id="circle18672"
+       style="opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1" />
+    <circle
+       style="opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+       id="circle18674"
+       cx="39.5"
+       cy="422.5"
+       r="2.45" />
+    <circle
+       r="1.5"
+       cy="422.5"
+       cx="43.5"
+       id="circle18676"
+       style="opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1" />
+    <rect
+       rx="0"
+       ry="0"
+       y="418"
+       x="39"
+       height="3"
+       width="1"
+       id="rect18682"
+       style="opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1" />
+    <circle
+       style="opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.1;stroke-linecap:round;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
+       id="circle18687"
+       cx="39.5"
+       cy="422.5"
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+       rx="0.5"
+       ry="0.5"
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+    <path
+       style="opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.1;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
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+       inkscape:connector-curvature="0"
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+    <path
+       style="opacity:1;fill:none;fill-opacity:1;stroke:#000000;stroke-width:0.1;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
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+       id="path18743"
+       inkscape:connector-curvature="0"
+       sodipodi:nodetypes="ccc" />
+    <path
+       style="opacity:1;fill:#000000;fill-opacity:1;stroke:none;stroke-width:0.1;stroke-linecap:butt;stroke-linejoin:round;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1"
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+       id="wheat"
+       inkscape:label="#path18745" />
   </g>
 </svg>
diff --git a/scheme/default.yml b/scheme/default.yml
index 68e8c5e..854b8b3 100644
--- a/scheme/default.yml
+++ b/scheme/default.yml
@@ -146,6 +146,8 @@ node_icons:
       shapes: [{shape: christmas_tree, color: orchard_border_color}]
     - tags: {crop: sunflower}
       shapes: [{shape: sunflower, color: farmland_darker_color, outline: no}]
+    - tags: {crop: wheat}
+      shapes: [{shape: wheat, color: farmland_darker_color, outline: no}]
     - tags: {produce: apple}
       shapes: [{shape: apple, color: orchard_border_color}]
     - tags: {produce: christmas_trees}