diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4826895..d3347ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -15,9 +15,11 @@ set(ASSETS)
 
 if(AZUR_PLATFORM STREQUAL gint)
   list(APPEND SOURCES
+    src/backend/gint/shader_vfx.cc
     src/backend/gint/shader.cc)
   list(APPEND ASSETS
     assets/font.png
+    assets/cursor0.png
     assets/cursor.png
     assets/title.png
     assets/1_1.txt
diff --git a/assets/1_1.txt b/assets/1_1.txt
index 8e82638..d2f245a 100644
--- a/assets/1_1.txt
+++ b/assets/1_1.txt
@@ -1,21 +1,20 @@
 name: 1-1
-finish: 67
 
-1-3: text "Welcome to the drop!\n"
-4-8: text "I know you have\nmany questions.\n\nDon't ask them. We're busy."
-9-13: text "Use the arrow keys to move."
+1/ 3 text "Welcome to the drop!\n"
+1/ 5 text "I know you have\nmany questions.\n\nDon't ask them. We're busy."
+1/ 4 text "Use the arrow keys to move."
 
-20-24: text "Red bad.\nDon't touch the red stuff."
-26: plane DAMAGE VLINES_1_5
-30: plane DAMAGE BOX
-34: plane DAMAGE 0b11100'11100'11100'00000'00000
-38: plane DAMAGE 0b11100'11000'10001'00011'00111
+9/ 5 text "Red bad.\nDon't touch the red stuff."
+3/ plane DAMAGE VLINES_1_5
+3/ plane DAMAGE BIGDOT
+3/ plane DAMAGE BOX
+3/ plane DAMAGE 0b11111'10101'10101'10101'11111
 
-42-44: text "Be careful!"
-46: plane DAMAGE 0b11100'11100'11100'11100'11100
-48: plane DAMAGE 0b00000'00000'11111'11111'11111
-50: plane DAMAGE 0b00111'00111'00111'00111'00111
-52: plane DAMAGE 0b11111'11111'11111'00000'00000
+4/ 2 text "Be careful!"
+3/ plane DAMAGE 0b11111'10011'10101'11001'11111
+3/ plane DAMAGE HASH
+3/ plane DAMAGE CORNERS
+3/ plane DAMAGE BOX_DOT
 
-56-62: text "Nice job.\n\nDon't worry, I'll teach you\nhow to deal with the drop\nfrom the ground up."
-63-65: text "Get it? The ground. Haha."
+4/ 6 text "Nice job.\n\nDon't worry, I'll teach you\nhow to deal with the drop\nfrom the ground up."
+1/ 3 text "Get it? The ground. Haha."
diff --git a/assets/1_2.txt b/assets/1_2.txt
index 2be9d9a..70a92e1 100644
--- a/assets/1_2.txt
+++ b/assets/1_2.txt
@@ -1,26 +1,21 @@
 name: 1-2
-finish: 53
 
-1-5: text "Press F1 or F2 to roll."
+1/ 5 text "Press F1 or F2 to roll."
+3/ plane DAMAGE 0b01110'11111'11111'10001'01010
+3/ plane DAMAGE BOX
+3/ plane DAMAGE 0b01010'10001'11111'11111'01110
+3/ plane DAMAGE BIGDOT
 
-7:  plane DAMAGE 0b01110'11111'11011'10001'00000
-10: plane DAMAGE 0b01110'00111'00011'00111'01110
-13: plane DAMAGE 0b00000'10001'11011'11111'01110
-16: plane DAMAGE 0b01110'11100'11000'11100'01110
+5/ 4 text "If you roll while close\nto an edge, you will\nmove along the wall."
+3/ plane DAMAGE 0b10001'11111'11111'11111'11111
+3/ plane DAMAGE 0b11111'01111'01111'01111'11111
+3/ plane DAMAGE 0b11111'11110'11110'11110'11111
 
-18-21: text "If you roll while close\nto an edge, you will\nmove along the wall."
+5/ 4 text "Green good.\nRoll to make the arrow point down."
+3/ plane ARROW ARROW_+X
+3/ plane ARROW ARROW_-X
+3/ plane DAMAGE BOX
+2/ plane ARROW ARROW_+Z
+2/ plane ARROW ARROW_-Z
 
-24: plane DAMAGE 0b10001'11111'11111'11111'11111
-26: plane DAMAGE 0b11111'01111'01111'01111'11111
-28: plane DAMAGE 0b11111'11111'11111'11111'10001
-30: plane DAMAGE 0b11111'11110'11110'11110'11111
-
-34-38: text "Green good.\nRoll to make the arrow point down."
-
-40: plane ARROW ARROW_+X
-42: plane ARROW ARROW_-X
-44: plane DAMAGE BOX
-45: plane ARROW ARROW_+Z
-46: plane ARROW ARROW_-Z
-
-48-51: text "Impressive! You're taking off!"
+4/ 3 text "Impressive! You're taking off!"
diff --git a/assets/1_3.txt b/assets/1_3.txt
index 0c613aa..3edd4d3 100644
--- a/assets/1_3.txt
+++ b/assets/1_3.txt
@@ -1,20 +1,20 @@
 name: 1-3
-finish: 39
 
-1-6: text "Oh, we have mirrors too.\nAbsolutely not for safety reasons."
-3-33: mirror
+@ 3/ 42 mirror
 
-8: plane DAMAGE BOX
-10: plane DAMAGE BIGDOT
-12: plane DAMAGE BOX_DOT
+1/ 6 text "Oh, we have mirrors too.\nAbsolutely not for safety reasons."
 
-15-18: text "Ok, I lied.\n\nThere MIGHT be invisible red stuff."
+3/ plane DAMAGE BOX
+3/ plane DAMAGE BIGDOT
+3/ plane DAMAGE BOX_DOT
 
-21: plane INVIS BOX
-23: plane INVIS BIGDOT
-25: plane ARROW ARROW_+X
-27: plane ARROW ARROW_-X
-29: plane INVIS VLINES_2_4
+4/ 4 text "Ok, I lied.\n\nThere MIGHT be invisible red stuff."
 
-31-33: text "Wow, you're good.\nYou're gonna run the lab\ninto the ground."
-35-37: text "The DROP. *"
+3/ plane INVIS BOX
+3/ plane INVIS BIGDOT
+3/ plane ARROW ARROW_+X
+3/ plane ARROW ARROW_-X
+3/ plane INVIS VLINES_2_4
+
+4/ 5 text "Wow, you're good.\nYou're gonna run the lab\ninto the ground."
+1/ 2 text "The DROP. *"
diff --git a/assets/2_1.txt b/assets/2_1.txt
index 7aa39d5..11e2d52 100644
--- a/assets/2_1.txt
+++ b/assets/2_1.txt
@@ -1,20 +1,19 @@
 name: 2-1
-finish: 32
 
-1-4: text "Falling in 3, 2...\nOh, wait, you're already falling."
+1/ 4 text "Falling in 3, 2...\nOh, wait, you're already falling."
 
-6: plane DAMAGE DIAGONAL+
-8: plane DAMAGE DIAGONAL-
-10: plane ARROW ARROW_+Z
-12: plane DAMAGE BOX
-13: plane ARROW ARROW_-X
-14: plane ARROW ARROW_+X
+3/ plane DAMAGE DIAGONAL+
+3/ plane DAMAGE DIAGONAL-
+3/ plane ARROW ARROW_+Z
+2/ plane DAMAGE BOX
+2/ plane ARROW ARROW_-X
+3/ plane ARROW ARROW_+X
 
-16-30: mirror
-18: plane DAMAGE RING
-20: plane ARROW ARROW_-Z
-21: plane DAMAGE BOX
-22: plane ARROW ARROW_-X
-23: plane DAMAGE DOT
-24: plane ARROW ARROW_+X
-27: plane DAMAGE VLINES_2_4
+@ 2/ 20 mirror
+4/ plane DAMAGE RING
+2/ plane ARROW ARROW_-Z
+3/ plane DAMAGE BOX
+2/ plane ARROW ARROW_-X
+2/ plane DAMAGE DOT
+2/ plane ARROW ARROW_+X
+3/ plane DAMAGE VLINES_2_4
diff --git a/assets/2_2.txt b/assets/2_2.txt
index 61401a7..a6eb887 100644
--- a/assets/2_2.txt
+++ b/assets/2_2.txt
@@ -1,19 +1,18 @@
 name: 2-2
-finish: 34
 
-1-30: mirror
-2-5: text "You don't have a reflection\nin the mirror.\n\nWhat does that tell us\nabout you?"
+@ 3/ 40 mirror
+1/ 5 text "You don't have a reflection\nin the mirror.\n\nWhat does that tell us\nabout you?"
 
-7: plane ARROW ARROW_+X
-9: plane DAMAGE HLINES_1_5
-11: plane DAMAGE VLINES_2_4
-13: plane ARROW ARROW_-Z
-15: plane DAMAGE BIGDOT
-16: plane DAMAGE BOX
-18: plane DAMAGE BIGDOT
-20: plane ARROW ARROW_-X
-22: plane DAMAGE VLINES_2_4
-24: plane ARROW ARROW_+Z
-26: plane DAMAGE HLINES_2_4
+3/ plane ARROW ARROW_+X
+3/ plane DAMAGE HLINES_1_5
+3/ plane DAMAGE VLINES_1_3_5
+3/ plane ARROW ARROW_+Z
+2/ plane DAMAGE BIGDOT
+2/ plane DAMAGE BOX
+2/ plane DAMAGE BIGDOT
+3/ plane ARROW ARROW_-X
+3/ plane DAMAGE VLINES_2_4
+3/ plane ARROW ARROW_+Z
+3/ plane DAMAGE HLINES_2_4
 
-30-33: text "Look at you, all dizzy\njust from rolling a bit.\n\nGet ready, we need results!"
+5/ 5 text "Don't get dizzy\njust from rolling a bit.\n\nBuckle up, we're going for results!"
diff --git a/assets/2_3.txt b/assets/2_3.txt
index e698f2c..f69692e 100644
--- a/assets/2_3.txt
+++ b/assets/2_3.txt
@@ -1,30 +1,28 @@
 name: 2-3
-finish: 57
 
-1-3: text "Let's see if you can\nthread the needle here."
+1/ 3 text "Let's see if you can\nthread the needle."
 
-5: plane DAMAGE 0b11111'11101'11111'11111'11111
-7: plane DAMAGE 0b11111'11111'11111'10111'11111
-9: plane DAMAGE 0b11111'10111'11111'11111'11111
-11: plane DAMAGE 0b11111'11111'11111'11101'11111
+3/ plane DAMAGE 0b11111'11101'11101'11101'11111
+3/ plane DAMAGE 0b11111'11111'11111'11111'11001
+3/ plane DAMAGE 0b10111'10111'11111'11111'11111
+3/ plane ARROW ARROW_-X
+3/ plane DAMAGE BOX_DOT
 
-14-17: text "Trick question!\nYou just had to roll."
-18-20: text "No longer though."
+@ 6/ 36 mirror
+4/ 5 text "Great!\n\nNow for peripheral vision..."
 
-22: plane DAMAGE 0b01111'11111'11111'11111'11111
-24: plane DAMAGE 0b11111'10111'11111'11111'11111
-26: plane DAMAGE 0b11111'11111'11011'11111'11111
-28: plane DAMAGE 0b11111'11111'11111'11101'11111
-30: plane DAMAGE 0b11111'11111'11011'11111'11111
+2/ plane DAMAGE BOX
+2/ plane INVIS HLINES_1_3_5
+2/ plane DAMAGE BIGDOT
+2/ plane INVIS BOX
 
-34: plane DAMAGE 0b11111'11101'11111'11111'11111
-36: plane ARROW ARROW_+Z
-38: plane DAMAGE 0b11111'10111'11111'11111'11111
-40: plane ARROW ARROW_+X
-42: plane DAMAGE 0b01111'11111'11111'11111'11111
-44: plane ARROW ARROW_-X
-46: plane DAMAGE 0b11111'11111'11111'11101'11111
-48: plane ARROW ARROW_+Z
-50: plane DAMAGE 0b11111'11111'11111'11101'11111
+3/ 1 text "Roll, boy, roll!"
 
-52-55: text "Not bad...\nFinally someone promising."
+2/ plane ARROW ARROW_-Z
+2/ plane DAMAGE VLINES_1_3_5
+2/ plane ARROW ARROW_+X
+2/ plane INVIS HASH
+3/ plane ARROW ARROW_-X
+2/ plane ARROW ARROW_+Z
+
+5/ 5 text "Not bad...!\nYou're promising,\nI'll give you that."
diff --git a/assets/cursor.png b/assets/cursor.png
index e0699a2..5f1dc8f 100644
Binary files a/assets/cursor.png and b/assets/cursor.png differ
diff --git a/assets/cursor0.png b/assets/cursor0.png
new file mode 100644
index 0000000..4c09199
Binary files /dev/null and b/assets/cursor0.png differ
diff --git a/assets/title.png b/assets/title.png
index 2fb6ade..faeba81 100644
Binary files a/assets/title.png and b/assets/title.png differ
diff --git a/assets/title.xcf b/assets/title.xcf
index 5e701e2..2834fa8 100644
Binary files a/assets/title.xcf and b/assets/title.xcf differ
diff --git a/converters.py b/converters.py
index 8708149..3d08da8 100644
--- a/converters.py
+++ b/converters.py
@@ -17,57 +17,80 @@ def convert(input, output, params, target):
 def num(value):
     return fxconv.u32(value * 65536)
 
+DISTANCE_FACTOR = 24
+
+def advance(position, coordinate):
+    silent = False
+
+    if coordinate.startswith("@"):
+        silent = True
+        coordinate = coordinate[1:]
+
+    if coordinate.startswith("="):
+        value = int(coordinate)
+    else:
+        value = position + int(coordinate[1:])
+
+    if silent:
+        return position, value
+    else:
+        return value, value
+
 def convert_level(input, params):
     RE_VALUES = {
         "name": re.compile(r'.*'),
-        "finish": re.compile(r'\d+')
     }
     RE_ELEMENTS = {
         "mirror": (True, re.compile(r'')),
         "plane": (False, re.compile(r'(\S+)\s+(\S+)')),
         "text": (True, re.compile(r'\"([^"]+)\"')),
     }
-    RE_POSITION = re.compile(r'(\d+)(?:-(\d+))?')
+    RE_POSITION = re.compile(r'^\s*(@)?\s*(?:(\d+)/)?\s*(\d+)?')
 
     header = dict()
     elements = []
+    pos = 0
 
     with open(input, "r") as fp:
         lines = [l for l in fp.read().splitlines() if l
                  and not l.startswith("#")]
         for i, l in enumerate(lines):
-            if ":" not in l:
-                raise fxconv.FxconvError(f"invalid line '{l}': no ':'")
-            key, value = [x.strip() for x in l.split(":", 1)]
-
-            m_pos = RE_POSITION.fullmatch(key)
-            if m_pos:
-                start = int(m_pos[1])
-                end = int(m_pos[2]) if m_pos[2] else None
-                things = [x.strip() for x in value.strip().split(" ", 1)]
-                if len(things) == 1:
-                    key, value = things[0], ""
-                else:
-                    key, value = things
-
-                if key not in RE_ELEMENTS:
-                    raise fxconv.FxconvError(f"unknown element '{key}'")
-                if RE_ELEMENTS[key][0] and end is None:
-                    raise fxconv.FxconvError(f"'{key}' needs an end position")
-                if not RE_ELEMENTS[key][0] and end is not None:
-                    raise fxconv.FxconvError(f"'{key}' needs no end position")
-                m = RE_ELEMENTS[key][1].fullmatch(value)
-                if not m:
-                    raise fxconv.FxconvError(
-                        f"invalid value for '{key}': '{value}")
-                elements.append((key, start, end, m))
-            else:
+            # Key/value metadata
+            if ":" in l:
+                key, value = [x.strip() for x in l.split(":", 1)]
                 if key not in RE_VALUES:
                     raise fxconv.FxconvError(f"unknown key '{key}'")
                 if not RE_VALUES[key].fullmatch(value):
                     raise fxconv.FxconvError(
                         f"invalid value for '{key}': '{value}'")
                 header[key] = value
+                continue
+
+            # Elements
+            m_pos = RE_POSITION.match(l)
+            if not m_pos:
+                raise fxconv.FxconvError(f"invalid position: '{l}'")
+
+            start = pos + int(m_pos[2]) if m_pos[2] else pos
+            end = start + int(m_pos[3]) if m_pos[3] else start
+            if not m_pos[1]:
+                pos = end
+
+            l = l[len(m_pos[0]):]
+            things = [x.strip() for x in l.strip().split(" ", 1)]
+            if len(things) == 1:
+                elname, data = things[0], ""
+            else:
+                elname, data = things
+
+            if RE_ELEMENTS[elname][0] and end == start:
+                raise fxconv.FxconvError(f"'{elname}' needs a size")
+            if not RE_ELEMENTS[elname][0] and end != start:
+                raise fxconv.FxconvError(f"'{elname}' needs no size")
+            m = RE_ELEMENTS[elname][1].fullmatch(data)
+            if not m:
+                raise fxconv.FxconvError(f"bad data for '{elname}': '{data}")
+            elements.append((elname, start, end, m))
 
     mirrors = fxconv.ObjectData()
     planes = fxconv.ObjectData()
@@ -78,8 +101,8 @@ def convert_level(input, params):
 
     for (key, start, end, m) in elements:
         if key == "mirror":
-            mirrors += num(start * 32)
-            mirrors += num(end * 32)
+            mirrors += num(start * DISTANCE_FACTOR)
+            mirrors += num(end * DISTANCE_FACTOR)
             mirror_count += 1
 
         elif key == "plane":
@@ -88,14 +111,18 @@ def convert_level(input, params):
 
             predef_shapes = {
                 "VLINES_1_5":   0b1000110001100011000110001,
+                "VLINES_1_3_5": 0b1010110101101011010110101,
                 "VLINES_2_4":   0b0101001010010100101001010,
                 "HLINES_1_5":   0b1111100000000000000011111,
+                "HLINES_1_3_5": 0b1111100000111110000011111,
                 "HLINES_2_4":   0b0000011111000001111100000,
+                "HASH":         0b0101011111010101111101010,
                 "BOX":          0b1111110001100011000111111,
                 "BOX_DOT":      0b1111110001101011000111111,
                 "BIGDOT":       0b0000001110011100111000000,
                 "DOT":          0b0000000000001000000000000,
                 "RING":         0b0000001110010100111000000,
+                "CORNERS":      0b1101111011000001101111011,
                 "DIAGONAL+":    0b0001100111011101110011000,
                 "DIAGONAL-":    0b1100011100011100011100011,
                 "ARROW_+X":     0b0010000010111110001000100,
@@ -124,7 +151,7 @@ def convert_level(input, params):
                 assert shape_str in directions
                 data = directions.index(shape_str)
 
-            planes += num(start * 32)
+            planes += num(start * DISTANCE_FACTOR)
             planes += fxconv.u32(shape)
             planes += fxconv.u16(kinds[kind])
             planes += fxconv.u16(data)
@@ -132,14 +159,14 @@ def convert_level(input, params):
 
         elif key == "text":
             string = m[1].replace("\\n", "\n").replace("\\\\", "\\")
-            texts += num(start * 32)
-            texts += num(end * 32)
+            texts += num(start * DISTANCE_FACTOR)
+            texts += num(end * DISTANCE_FACTOR)
             texts += fxconv.string(string)
             text_count += 1
 
     o = fxconv.ObjectData()
     o += fxconv.string(header.get("name", "<Untitled>"))
-    o += num(int(header["finish"]) * 32)
+    o += num(int(header.get("finish", pos+2)) * DISTANCE_FACTOR)
     o += fxconv.u32(mirror_count)
     o += fxconv.ptr(mirrors)
     o += fxconv.u32(plane_count)
diff --git a/src/backend/gint/shader_vfx.cc b/src/backend/gint/shader_vfx.cc
new file mode 100644
index 0000000..89fa271
--- /dev/null
+++ b/src/backend/gint/shader_vfx.cc
@@ -0,0 +1,57 @@
+#include "../../chaos-drop.h"
+#include <azur/gint/render.h>
+
+uint8_t CD_VFX_SHADER_ID = -1;
+
+struct cd_vfx_cmd
+{
+    /* Shader ID for Azur */
+    uint8_t shader_id;
+    uint8_t _;
+
+    uint16_t effect;
+};
+
+void cd_vfx_shader(void *uniforms, void *cmd0, void *fragment0)
+{
+    int N = (int)uniforms;
+    struct cd_vfx_cmd *cmd = (struct cd_vfx_cmd *)cmd0;
+    uint32_t *fragment = (uint32_t *)fragment0;
+
+    if(cmd->effect == CD_VFX_DARKEN) {
+        for(int i = 0; i < N; i++)
+            fragment[i] = (fragment[i] & 0xf7def7de) >> 1;
+    }
+    else if(cmd->effect == CD_VFX_WHITEN) {
+        for(int i = 0; i < N; i++)
+            fragment[i] = ~((~fragment[i] & 0xf7def7de) >> 1);
+    }
+    else if(cmd->effect == CD_VFX_INVERT) {
+        for(int i = 0; i < N; i++)
+            fragment[i] = ~fragment[i];
+    }
+}
+
+GCONSTRUCTOR
+static void register_shader(void)
+{
+    CD_VFX_SHADER_ID = azrp_register_shader(cd_vfx_shader);
+}
+
+void cd_vfx(int effect)
+{
+    prof_enter(azrp_perf_cmdgen);
+
+    struct cd_vfx_cmd cmd;
+    cmd.shader_id = CD_VFX_SHADER_ID;
+    cmd.effect = effect;
+
+    azrp_queue_command(&cmd, sizeof cmd, 0, azrp_frag_count);
+    prof_leave(azrp_perf_cmdgen);
+}
+
+void cd_vfx_configure(void)
+{
+    uint32_t value = (azrp_frag_height * azrp_width) / 2;
+    azrp_set_uniforms(CD_VFX_SHADER_ID, (void *)value);
+}
diff --git a/src/chaos-drop.h b/src/chaos-drop.h
index cf633f7..33eb5d9 100644
--- a/src/chaos-drop.h
+++ b/src/chaos-drop.h
@@ -202,6 +202,22 @@ void cd_raytrace(struct game const *game);
    any scale change. */
 void cd_raytrace_configure(void);
 
+//---
+// Other shaders
+//---
+
+/* Basic full-screen visual effects */
+enum {
+   CD_VFX_DARKEN = 0,
+   CD_VFX_WHITEN = 1,
+   CD_VFX_INVERT = 2,
+};
+
+/* Apply a visual effect to the entire screen */
+void cd_vfx(int effect);
+/* Shader configuration function for cd_vfx() */
+void cd_vfx_configure(void);
+
 //=== Input management ===//
 
 struct input {
diff --git a/src/main.cc b/src/main.cc
index 871cc47..375528c 100644
--- a/src/main.cc
+++ b/src/main.cc
@@ -168,6 +168,7 @@ static void init(void)
     prof_init();
     azrp_config_scale(2);
     cd_raytrace_configure();
+    cd_vfx_configure();
     azrp_shader_clear_configure();
     azrp_shader_image_p8_configure();
 }
@@ -287,7 +288,7 @@ void game_render(struct game *g)
     struct level const *level = g->level;
 
 #ifdef AZUR_TOOLKIT_GINT
-    extern image_t img_title, img_cursor;
+    extern image_t img_title, img_cursor, img_cursor0;
 
     azrp_perf_clear();
     if(g->blank_frames > 0) {
@@ -311,7 +312,9 @@ void game_render(struct game *g)
             int width = text_size(name, l);
 
             if(g->menu_cursor == i)
-                azrp_image(x - width/2 - 6, y-2, &img_cursor);
+                azrp_image(x - width/2 - 8, y-5, &img_cursor);
+            else
+                azrp_image(x - width/2 - 6, y-3, &img_cursor0);
 
             draw_text(x - width/2, y, name, l);
         }
diff --git a/src/raytracing.cc b/src/raytracing.cc
index e686297..3df2431 100644
--- a/src/raytracing.cc
+++ b/src/raytracing.cc
@@ -6,11 +6,11 @@
 #define RGB(R, G, B) ((R << 11) | (G << 6) | (B))
 /* Color palette for world objects */
 static uint16_t const object_colors[] = {
-    RGB(3, 4, 8),       /* Void/background */
-    RGB(3, 4, 8),       /* Left wall (-X) */
-    RGB(5, 6, 9),       /* Top wall (+Z) */
-    RGB(7, 8, 11),      /* Right wall (+X) */
-    RGB(5, 6, 9),       /* Bottom wall (-Z) */
+    RGB(3, 4, 5),       /* Void/background */
+    RGB(3, 4, 5),       /* Left wall (-X) */
+    RGB(5, 6, 7),       /* Top wall (+Z) */
+    RGB(7, 8, 9),      /* Right wall (+X) */
+    RGB(5, 6, 7),       /* Bottom wall (-Z) */
     RGB(31, 0, 0),      /* ELEMENT_PLANE_DAMAGE */
     RGB(0, 31, 0),      /* ELEMENT_PLANE_ARROW */
     RGB(15, 0, 0),      /* ELEMENT_PLANE_INVIS */