diff --git a/img/black-concrete.png b/img/black-concrete.png
new file mode 100644
index 00000000..9de0782a
Binary files /dev/null and b/img/black-concrete.png differ
diff --git a/img/blue-concrete.png b/img/blue-concrete.png
new file mode 100644
index 00000000..f47adcb6
Binary files /dev/null and b/img/blue-concrete.png differ
diff --git a/img/brown-concrete.png b/img/brown-concrete.png
new file mode 100644
index 00000000..33f159d3
Binary files /dev/null and b/img/brown-concrete.png differ
diff --git a/img/cmp-missing.txt b/img/cmp-missing.txt
new file mode 100644
index 00000000..a669f999
--- /dev/null
+++ b/img/cmp-missing.txt
@@ -0,0 +1,15 @@
+cmp-on-E.png
+cmp-on-N.png
+cmp-on-W.png
+
+cmp-on-sub-E.png
+cmp-on-sub-N.png
+cmp-on-sub-W.png
+
+cmp-off-E.png
+cmp-off-N.png
+cmp-off-W.png
+
+cmp-off-sub-E.png
+cmp-off-sub-N.png
+cmp-off-sub-W.png
diff --git a/img/cmp-off-S.png b/img/cmp-off-S.png
new file mode 100644
index 00000000..d91f6a53
Binary files /dev/null and b/img/cmp-off-S.png differ
diff --git a/img/cmp-off-sub-S.png b/img/cmp-off-sub-S.png
new file mode 100644
index 00000000..1ad49b61
Binary files /dev/null and b/img/cmp-off-sub-S.png differ
diff --git a/img/cmp-on-S.png b/img/cmp-on-S.png
new file mode 100644
index 00000000..201b2947
Binary files /dev/null and b/img/cmp-on-S.png differ
diff --git a/img/cmp-on-sub-S.png b/img/cmp-on-sub-S.png
new file mode 100644
index 00000000..cae057ee
Binary files /dev/null and b/img/cmp-on-sub-S.png differ
diff --git a/img/cyan-concrete.png b/img/cyan-concrete.png
new file mode 100644
index 00000000..e467bd18
Binary files /dev/null and b/img/cyan-concrete.png differ
diff --git a/img/dropper-D.png b/img/dropper-D.png
new file mode 100644
index 00000000..d4aa2fa4
--- /dev/null
+++ b/img/dropper-D.png
@@ -0,0 +1 @@
+storage: object doesn't exist: rpc error: code = NotFound desc = No such object: weirdgloopimages/en_mcwiki/Dropper_(D)_JE3.png
diff --git a/img/dropper-E.png b/img/dropper-E.png
new file mode 100644
index 00000000..711e25c6
Binary files /dev/null and b/img/dropper-E.png differ
diff --git a/img/dropper-N.png b/img/dropper-N.png
new file mode 100644
index 00000000..66bb71ab
Binary files /dev/null and b/img/dropper-N.png differ
diff --git a/img/dropper-S.png b/img/dropper-S.png
new file mode 100644
index 00000000..e1bd4d2f
Binary files /dev/null and b/img/dropper-S.png differ
diff --git a/img/dropper-U.png b/img/dropper-U.png
new file mode 100644
index 00000000..5196e80f
Binary files /dev/null and b/img/dropper-U.png differ
diff --git a/img/dropper-W.png b/img/dropper-W.png
new file mode 100644
index 00000000..8048535e
Binary files /dev/null and b/img/dropper-W.png differ
diff --git a/img/dust-missing.txt b/img/dust-missing.txt
new file mode 100644
index 00000000..d70cfb12
--- /dev/null
+++ b/img/dust-missing.txt
@@ -0,0 +1,5 @@
+dust-off-NU.png
+dust-off-WU.png
+
+dust-on-NU.png
+dust-on-WU.png
diff --git a/img/dust-off-ES.png b/img/dust-off-ES.png
new file mode 100644
index 00000000..83be747d
Binary files /dev/null and b/img/dust-off-ES.png differ
diff --git a/img/dust-off-ESW.png b/img/dust-off-ESW.png
new file mode 100644
index 00000000..15eaac6b
Binary files /dev/null and b/img/dust-off-ESW.png differ
diff --git a/img/dust-off-EW.png b/img/dust-off-EW.png
new file mode 100644
index 00000000..54454696
Binary files /dev/null and b/img/dust-off-EW.png differ
diff --git a/img/dust-off-NE.png b/img/dust-off-NE.png
new file mode 100644
index 00000000..dd3503dc
Binary files /dev/null and b/img/dust-off-NE.png differ
diff --git a/img/dust-off-NES.png b/img/dust-off-NES.png
new file mode 100644
index 00000000..41cbcf15
Binary files /dev/null and b/img/dust-off-NES.png differ
diff --git a/img/dust-off-NESW.png b/img/dust-off-NESW.png
new file mode 100644
index 00000000..efb883ad
Binary files /dev/null and b/img/dust-off-NESW.png differ
diff --git a/img/dust-off-NEW.png b/img/dust-off-NEW.png
new file mode 100644
index 00000000..c1663238
Binary files /dev/null and b/img/dust-off-NEW.png differ
diff --git a/img/dust-off-NS.png b/img/dust-off-NS.png
new file mode 100644
index 00000000..98a601d4
Binary files /dev/null and b/img/dust-off-NS.png differ
diff --git a/img/dust-off-NSW.png b/img/dust-off-NSW.png
new file mode 100644
index 00000000..303fa9d6
Binary files /dev/null and b/img/dust-off-NSW.png differ
diff --git a/img/dust-off-NW.png b/img/dust-off-NW.png
new file mode 100644
index 00000000..03c56509
Binary files /dev/null and b/img/dust-off-NW.png differ
diff --git a/img/dust-off-SW.png b/img/dust-off-SW.png
new file mode 100644
index 00000000..acb87acf
Binary files /dev/null and b/img/dust-off-SW.png differ
diff --git a/img/dust-off.png b/img/dust-off.png
new file mode 100644
index 00000000..cbd539df
Binary files /dev/null and b/img/dust-off.png differ
diff --git a/img/dust-on-ES.png b/img/dust-on-ES.png
new file mode 100644
index 00000000..dd64c6d0
Binary files /dev/null and b/img/dust-on-ES.png differ
diff --git a/img/dust-on-ESW.png b/img/dust-on-ESW.png
new file mode 100644
index 00000000..cb062d9e
Binary files /dev/null and b/img/dust-on-ESW.png differ
diff --git a/img/dust-on-EW.png b/img/dust-on-EW.png
new file mode 100644
index 00000000..fd4640de
Binary files /dev/null and b/img/dust-on-EW.png differ
diff --git a/img/dust-on-NE.png b/img/dust-on-NE.png
new file mode 100644
index 00000000..a4f978bf
Binary files /dev/null and b/img/dust-on-NE.png differ
diff --git a/img/dust-on-NES.png b/img/dust-on-NES.png
new file mode 100644
index 00000000..9b179221
Binary files /dev/null and b/img/dust-on-NES.png differ
diff --git a/img/dust-on-NESW.png b/img/dust-on-NESW.png
new file mode 100644
index 00000000..760317f0
Binary files /dev/null and b/img/dust-on-NESW.png differ
diff --git a/img/dust-on-NEW.png b/img/dust-on-NEW.png
new file mode 100644
index 00000000..68ce5554
Binary files /dev/null and b/img/dust-on-NEW.png differ
diff --git a/img/dust-on-NS.png b/img/dust-on-NS.png
new file mode 100644
index 00000000..f465010d
Binary files /dev/null and b/img/dust-on-NS.png differ
diff --git a/img/dust-on-NSW.png b/img/dust-on-NSW.png
new file mode 100644
index 00000000..156f9d6b
Binary files /dev/null and b/img/dust-on-NSW.png differ
diff --git a/img/dust-on-NW.png b/img/dust-on-NW.png
new file mode 100644
index 00000000..b700bd58
Binary files /dev/null and b/img/dust-on-NW.png differ
diff --git a/img/dust-on-SW.png b/img/dust-on-SW.png
new file mode 100644
index 00000000..27e19a72
Binary files /dev/null and b/img/dust-on-SW.png differ
diff --git a/img/dust-on.png b/img/dust-on.png
new file mode 100644
index 00000000..e4bf212b
Binary files /dev/null and b/img/dust-on.png differ
diff --git a/img/glass.png b/img/glass.png
new file mode 100644
index 00000000..8fe27104
--- /dev/null
+++ b/img/glass.png
@@ -0,0 +1 @@
+storage: object doesn't exist: rpc error: code = NotFound desc = No such object: weirdgloopimages/en_mcwiki/Glass.png
diff --git a/img/gray-concrete.png b/img/gray-concrete.png
new file mode 100644
index 00000000..f7ba5a24
Binary files /dev/null and b/img/gray-concrete.png differ
diff --git a/img/green-concrete.png b/img/green-concrete.png
new file mode 100644
index 00000000..6ac8bfa3
Binary files /dev/null and b/img/green-concrete.png differ
diff --git a/img/hopper-D.png b/img/hopper-D.png
new file mode 100644
index 00000000..e9aec363
Binary files /dev/null and b/img/hopper-D.png differ
diff --git a/img/hopper-E.png b/img/hopper-E.png
new file mode 100644
index 00000000..216e063e
Binary files /dev/null and b/img/hopper-E.png differ
diff --git a/img/hopper-N.png b/img/hopper-N.png
new file mode 100644
index 00000000..9c676bd4
Binary files /dev/null and b/img/hopper-N.png differ
diff --git a/img/hopper-S.png b/img/hopper-S.png
new file mode 100644
index 00000000..ccc15025
Binary files /dev/null and b/img/hopper-S.png differ
diff --git a/img/hopper-W.png b/img/hopper-W.png
new file mode 100644
index 00000000..2c713542
Binary files /dev/null and b/img/hopper-W.png differ
diff --git a/img/light-blue-concrete.png b/img/light-blue-concrete.png
new file mode 100644
index 00000000..95656c2e
Binary files /dev/null and b/img/light-blue-concrete.png differ
diff --git a/img/light-gray-concrete.png b/img/light-gray-concrete.png
new file mode 100644
index 00000000..4d76f15e
Binary files /dev/null and b/img/light-gray-concrete.png differ
diff --git a/img/lime-concrete.png b/img/lime-concrete.png
new file mode 100644
index 00000000..64aa369e
Binary files /dev/null and b/img/lime-concrete.png differ
diff --git a/img/magenta-concrete.png b/img/magenta-concrete.png
new file mode 100644
index 00000000..2c38a8f5
Binary files /dev/null and b/img/magenta-concrete.png differ
diff --git a/img/orange-concrete.png b/img/orange-concrete.png
new file mode 100644
index 00000000..3a8e1d28
Binary files /dev/null and b/img/orange-concrete.png differ
diff --git a/img/pink-concrete.png b/img/pink-concrete.png
new file mode 100644
index 00000000..7288153c
Binary files /dev/null and b/img/pink-concrete.png differ
diff --git a/img/piston-D.png b/img/piston-D.png
new file mode 100644
index 00000000..cb1ee92e
Binary files /dev/null and b/img/piston-D.png differ
diff --git a/img/piston-E.png b/img/piston-E.png
new file mode 100644
index 00000000..412cc957
Binary files /dev/null and b/img/piston-E.png differ
diff --git a/img/piston-N.png b/img/piston-N.png
new file mode 100644
index 00000000..fd11b887
Binary files /dev/null and b/img/piston-N.png differ
diff --git a/img/piston-S.png b/img/piston-S.png
new file mode 100644
index 00000000..dfbabc7c
Binary files /dev/null and b/img/piston-S.png differ
diff --git a/img/piston-U.png b/img/piston-U.png
new file mode 100644
index 00000000..008b7ffc
Binary files /dev/null and b/img/piston-U.png differ
diff --git a/img/piston-W.png b/img/piston-W.png
new file mode 100644
index 00000000..6b166c4f
Binary files /dev/null and b/img/piston-W.png differ
diff --git a/img/piston-body-D.png b/img/piston-body-D.png
new file mode 100644
index 00000000..53bdac50
Binary files /dev/null and b/img/piston-body-D.png differ
diff --git a/img/piston-body-E.png b/img/piston-body-E.png
new file mode 100644
index 00000000..a5c4b663
Binary files /dev/null and b/img/piston-body-E.png differ
diff --git a/img/piston-body-N.png b/img/piston-body-N.png
new file mode 100644
index 00000000..824f936d
Binary files /dev/null and b/img/piston-body-N.png differ
diff --git a/img/piston-body-S.png b/img/piston-body-S.png
new file mode 100644
index 00000000..09c866e6
Binary files /dev/null and b/img/piston-body-S.png differ
diff --git a/img/piston-body-U.png b/img/piston-body-U.png
new file mode 100644
index 00000000..a74393f5
Binary files /dev/null and b/img/piston-body-U.png differ
diff --git a/img/piston-body-W.png b/img/piston-body-W.png
new file mode 100644
index 00000000..579c8caf
Binary files /dev/null and b/img/piston-body-W.png differ
diff --git a/img/piston-head-D.png b/img/piston-head-D.png
new file mode 100644
index 00000000..6ffc6802
Binary files /dev/null and b/img/piston-head-D.png differ
diff --git a/img/piston-head-E.png b/img/piston-head-E.png
new file mode 100644
index 00000000..60d1af90
Binary files /dev/null and b/img/piston-head-E.png differ
diff --git a/img/piston-head-N.png b/img/piston-head-N.png
new file mode 100644
index 00000000..f5d64cb7
Binary files /dev/null and b/img/piston-head-N.png differ
diff --git a/img/piston-head-S.png b/img/piston-head-S.png
new file mode 100644
index 00000000..b89784e6
Binary files /dev/null and b/img/piston-head-S.png differ
diff --git a/img/piston-head-U.png b/img/piston-head-U.png
new file mode 100644
index 00000000..670e4808
Binary files /dev/null and b/img/piston-head-U.png differ
diff --git a/img/piston-head-W.png b/img/piston-head-W.png
new file mode 100644
index 00000000..72a7ca77
Binary files /dev/null and b/img/piston-head-W.png differ
diff --git a/img/powder-snow.png b/img/powder-snow.png
new file mode 100644
index 00000000..793af0fa
--- /dev/null
+++ b/img/powder-snow.png
@@ -0,0 +1 @@
+storage: object doesn't exist: rpc error: code = NotFound desc = No such object: weirdgloopimages/en_mcwiki/Powder_Snow.png
diff --git a/img/purple-concrete.png b/img/purple-concrete.png
new file mode 100644
index 00000000..f918b339
Binary files /dev/null and b/img/purple-concrete.png differ
diff --git a/img/red-concrete.png b/img/red-concrete.png
new file mode 100644
index 00000000..2a1e8b90
Binary files /dev/null and b/img/red-concrete.png differ
diff --git a/img/rep-1-off-E.png b/img/rep-1-off-E.png
new file mode 100644
index 00000000..62b32a55
Binary files /dev/null and b/img/rep-1-off-E.png differ
diff --git a/img/rep-1-off-N.png b/img/rep-1-off-N.png
new file mode 100644
index 00000000..f465ab7a
Binary files /dev/null and b/img/rep-1-off-N.png differ
diff --git a/img/rep-1-off-S.png b/img/rep-1-off-S.png
new file mode 100644
index 00000000..e700098d
Binary files /dev/null and b/img/rep-1-off-S.png differ
diff --git a/img/rep-1-off-W.png b/img/rep-1-off-W.png
new file mode 100644
index 00000000..268ba7e7
Binary files /dev/null and b/img/rep-1-off-W.png differ
diff --git a/img/rep-1-off-lock-S.png b/img/rep-1-off-lock-S.png
new file mode 100644
index 00000000..9486c895
Binary files /dev/null and b/img/rep-1-off-lock-S.png differ
diff --git a/img/rep-1-on-E.png b/img/rep-1-on-E.png
new file mode 100644
index 00000000..3967a4b9
Binary files /dev/null and b/img/rep-1-on-E.png differ
diff --git a/img/rep-1-on-N.png b/img/rep-1-on-N.png
new file mode 100644
index 00000000..d5a8353a
Binary files /dev/null and b/img/rep-1-on-N.png differ
diff --git a/img/rep-1-on-S.png b/img/rep-1-on-S.png
new file mode 100644
index 00000000..e6de73e2
Binary files /dev/null and b/img/rep-1-on-S.png differ
diff --git a/img/rep-1-on-W.png b/img/rep-1-on-W.png
new file mode 100644
index 00000000..6d80a7b7
Binary files /dev/null and b/img/rep-1-on-W.png differ
diff --git a/img/rep-1-on-lock-S.png b/img/rep-1-on-lock-S.png
new file mode 100644
index 00000000..5bc65e10
Binary files /dev/null and b/img/rep-1-on-lock-S.png differ
diff --git a/img/rep-2-off-E.png b/img/rep-2-off-E.png
new file mode 100644
index 00000000..b53e8163
Binary files /dev/null and b/img/rep-2-off-E.png differ
diff --git a/img/rep-2-off-N.png b/img/rep-2-off-N.png
new file mode 100644
index 00000000..bae63eb7
Binary files /dev/null and b/img/rep-2-off-N.png differ
diff --git a/img/rep-2-off-S.png b/img/rep-2-off-S.png
new file mode 100644
index 00000000..8d19c17c
Binary files /dev/null and b/img/rep-2-off-S.png differ
diff --git a/img/rep-2-off-W.png b/img/rep-2-off-W.png
new file mode 100644
index 00000000..7903da53
Binary files /dev/null and b/img/rep-2-off-W.png differ
diff --git a/img/rep-2-off-lock-S.png b/img/rep-2-off-lock-S.png
new file mode 100644
index 00000000..4a7640f4
Binary files /dev/null and b/img/rep-2-off-lock-S.png differ
diff --git a/img/rep-2-on-E.png b/img/rep-2-on-E.png
new file mode 100644
index 00000000..cf46cb3b
Binary files /dev/null and b/img/rep-2-on-E.png differ
diff --git a/img/rep-2-on-N.png b/img/rep-2-on-N.png
new file mode 100644
index 00000000..ec0722b2
Binary files /dev/null and b/img/rep-2-on-N.png differ
diff --git a/img/rep-2-on-S.png b/img/rep-2-on-S.png
new file mode 100644
index 00000000..66271a5d
Binary files /dev/null and b/img/rep-2-on-S.png differ
diff --git a/img/rep-2-on-W.png b/img/rep-2-on-W.png
new file mode 100644
index 00000000..652810fb
Binary files /dev/null and b/img/rep-2-on-W.png differ
diff --git a/img/rep-2-on-lock-S.png b/img/rep-2-on-lock-S.png
new file mode 100644
index 00000000..51658a1c
Binary files /dev/null and b/img/rep-2-on-lock-S.png differ
diff --git a/img/rep-3-off-E.png b/img/rep-3-off-E.png
new file mode 100644
index 00000000..b5c6c8e6
Binary files /dev/null and b/img/rep-3-off-E.png differ
diff --git a/img/rep-3-off-N.png b/img/rep-3-off-N.png
new file mode 100644
index 00000000..3c9a0fee
Binary files /dev/null and b/img/rep-3-off-N.png differ
diff --git a/img/rep-3-off-S.png b/img/rep-3-off-S.png
new file mode 100644
index 00000000..64b1d526
Binary files /dev/null and b/img/rep-3-off-S.png differ
diff --git a/img/rep-3-off-W.png b/img/rep-3-off-W.png
new file mode 100644
index 00000000..ad99e019
Binary files /dev/null and b/img/rep-3-off-W.png differ
diff --git a/img/rep-3-off-lock-S.png b/img/rep-3-off-lock-S.png
new file mode 100644
index 00000000..8c8f90e1
Binary files /dev/null and b/img/rep-3-off-lock-S.png differ
diff --git a/img/rep-3-on-E.png b/img/rep-3-on-E.png
new file mode 100644
index 00000000..5e5159b6
Binary files /dev/null and b/img/rep-3-on-E.png differ
diff --git a/img/rep-3-on-N.png b/img/rep-3-on-N.png
new file mode 100644
index 00000000..c1a3f501
Binary files /dev/null and b/img/rep-3-on-N.png differ
diff --git a/img/rep-3-on-S.png b/img/rep-3-on-S.png
new file mode 100644
index 00000000..ff485482
Binary files /dev/null and b/img/rep-3-on-S.png differ
diff --git a/img/rep-3-on-W.png b/img/rep-3-on-W.png
new file mode 100644
index 00000000..4883d182
Binary files /dev/null and b/img/rep-3-on-W.png differ
diff --git a/img/rep-3-on-lock-S.png b/img/rep-3-on-lock-S.png
new file mode 100644
index 00000000..87827f06
Binary files /dev/null and b/img/rep-3-on-lock-S.png differ
diff --git a/img/rep-4-off-E.png b/img/rep-4-off-E.png
new file mode 100644
index 00000000..3499f144
Binary files /dev/null and b/img/rep-4-off-E.png differ
diff --git a/img/rep-4-off-N.png b/img/rep-4-off-N.png
new file mode 100644
index 00000000..3b634f0d
Binary files /dev/null and b/img/rep-4-off-N.png differ
diff --git a/img/rep-4-off-S.png b/img/rep-4-off-S.png
new file mode 100644
index 00000000..cce66234
Binary files /dev/null and b/img/rep-4-off-S.png differ
diff --git a/img/rep-4-off-W.png b/img/rep-4-off-W.png
new file mode 100644
index 00000000..9af58a0a
Binary files /dev/null and b/img/rep-4-off-W.png differ
diff --git a/img/rep-4-off-lock-S.png b/img/rep-4-off-lock-S.png
new file mode 100644
index 00000000..556ca704
Binary files /dev/null and b/img/rep-4-off-lock-S.png differ
diff --git a/img/rep-4-on-E.png b/img/rep-4-on-E.png
new file mode 100644
index 00000000..a4d0b5e9
Binary files /dev/null and b/img/rep-4-on-E.png differ
diff --git a/img/rep-4-on-N.png b/img/rep-4-on-N.png
new file mode 100644
index 00000000..7bc2d719
Binary files /dev/null and b/img/rep-4-on-N.png differ
diff --git a/img/rep-4-on-S.png b/img/rep-4-on-S.png
new file mode 100644
index 00000000..f6a2055c
Binary files /dev/null and b/img/rep-4-on-S.png differ
diff --git a/img/rep-4-on-W.png b/img/rep-4-on-W.png
new file mode 100644
index 00000000..6ee7281e
Binary files /dev/null and b/img/rep-4-on-W.png differ
diff --git a/img/rep-4-on-lock-S.png b/img/rep-4-on-lock-S.png
new file mode 100644
index 00000000..5b7ddaa0
Binary files /dev/null and b/img/rep-4-on-lock-S.png differ
diff --git a/img/rep-missing.txt b/img/rep-missing.txt
new file mode 100644
index 00000000..39ea0c6f
--- /dev/null
+++ b/img/rep-missing.txt
@@ -0,0 +1,31 @@
+rep-1-on-lock-E.png
+rep-1-on-lock-N.png
+rep-1-on-lock-W.png
+
+rep-2-on-lock-E.png
+rep-2-on-lock-N.png
+rep-2-on-lock-W.png
+
+rep-3-on-lock-E.png
+rep-3-on-lock-N.png
+rep-3-on-lock-W.png
+
+rep-4-on-lock-E.png
+rep-4-on-lock-N.png
+rep-4-on-lock-W.png
+
+rep-1-off-lock-E.png
+rep-1-off-lock-N.png
+rep-1-off-lock-W.png
+
+rep-2-off-lock-E.png
+rep-2-off-lock-N.png
+rep-2-off-lock-W.png
+
+rep-3-off-lock-E.png
+rep-3-off-lock-N.png
+rep-3-off-lock-W.png
+
+rep-4-off-lock-E.png
+rep-4-off-lock-N.png
+rep-4-off-lock-W.png
diff --git a/img/slab-bot.png b/img/slab-bot.png
new file mode 100644
index 00000000..d101b42b
Binary files /dev/null and b/img/slab-bot.png differ
diff --git a/img/slab-top.png b/img/slab-top.png
new file mode 100644
index 00000000..4a6684fb
Binary files /dev/null and b/img/slab-top.png differ
diff --git a/img/soul-sand.png b/img/soul-sand.png
new file mode 100644
index 00000000..25ed250c
--- /dev/null
+++ b/img/soul-sand.png
@@ -0,0 +1 @@
+storage: object doesn't exist: rpc error: code = NotFound desc = No such object: weirdgloopimages/en_mcwiki/Soul_Sand.png
diff --git a/img/sticky-piston-E.png b/img/sticky-piston-E.png
new file mode 100644
index 00000000..7fccdf3f
Binary files /dev/null and b/img/sticky-piston-E.png differ
diff --git a/img/sticky-piston-S.png b/img/sticky-piston-S.png
new file mode 100644
index 00000000..2f6aebf1
Binary files /dev/null and b/img/sticky-piston-S.png differ
diff --git a/img/sticky-piston-U.png b/img/sticky-piston-U.png
new file mode 100644
index 00000000..0fe95b74
Binary files /dev/null and b/img/sticky-piston-U.png differ
diff --git a/img/sticky-piston-head-E.png b/img/sticky-piston-head-E.png
new file mode 100644
index 00000000..b813e2d2
Binary files /dev/null and b/img/sticky-piston-head-E.png differ
diff --git a/img/sticky-piston-head-S.png b/img/sticky-piston-head-S.png
new file mode 100644
index 00000000..dc41f419
Binary files /dev/null and b/img/sticky-piston-head-S.png differ
diff --git a/img/sticky-piston-head-U.png b/img/sticky-piston-head-U.png
new file mode 100644
index 00000000..9f575948
Binary files /dev/null and b/img/sticky-piston-head-U.png differ
diff --git a/img/trapdoor-D.png b/img/trapdoor-D.png
new file mode 100644
index 00000000..3b9dc881
Binary files /dev/null and b/img/trapdoor-D.png differ
diff --git a/img/trapdoor-missing.txt b/img/trapdoor-missing.txt
new file mode 100644
index 00000000..c2a20bb1
--- /dev/null
+++ b/img/trapdoor-missing.txt
@@ -0,0 +1,5 @@
+trapdoor-N.png
+trapdoor-E.png
+trapdoor-S.png
+trapdoor-W.png
+trapdoor-U.png
diff --git a/img/white-concrete.png b/img/white-concrete.png
new file mode 100644
index 00000000..35906d55
Binary files /dev/null and b/img/white-concrete.png differ
diff --git a/img/yellow-concrete.png b/img/yellow-concrete.png
new file mode 100644
index 00000000..729b00bb
Binary files /dev/null and b/img/yellow-concrete.png differ