MC-76K: rename LAYOUT_all to LAYOUT (#20927)

* add matrix_diagram.md

* info.json: apply friendly formatting

* rename LAYOUT_all to LAYOUT

4 files changed, 106 insertions, 85 deletions

diff --git a/keyboards/mc_76k/info.json b/keyboards/mc_76k/info.json
index 8fc43ab394..5e35e45c35 100644
--- a/keyboards/mc_76k/info.json
+++ b/keyboards/mc_76k/info.json
@@ -15,94 +15,97 @@
     "diode_direction": "COL2ROW",
     "processor": "atmega32u4",
     "bootloader": "atmel-dfu",
+    "layout_aliases": {
+        "LAYOUT_all": "LAYOUT"
+    },
     "layouts": {
-        "LAYOUT_all": {
+        "LAYOUT": {
             "layout": [
-                {"matrix": [0, 0], "x": 0, "y": 0},
+                {"label": "Esc", "matrix": [0, 0], "x": 0, "y": 0},
 
-                {"matrix": [0, 1], "x": 1.25, "y": 0},
-                {"matrix": [0, 2], "x": 2.25, "y": 0},
-                {"matrix": [0, 3], "x": 3.25, "y": 0},
-                {"matrix": [0, 4], "x": 4.25, "y": 0},
+                {"label": "F1", "matrix": [0, 1], "x": 1.25, "y": 0},
+                {"label": "F2", "matrix": [0, 2], "x": 2.25, "y": 0},
+                {"label": "F3", "matrix": [0, 3], "x": 3.25, "y": 0},
+                {"label": "F4", "matrix": [0, 4], "x": 4.25, "y": 0},
 
-                {"matrix": [0, 5], "x": 5.5, "y": 0},
-                {"matrix": [0, 6], "x": 6.5, "y": 0},
-                {"matrix": [0, 7], "x": 7.5, "y": 0},
-                {"matrix": [0, 8], "x": 8.5, "y": 0},
+                {"label": "F5", "matrix": [0, 5], "x": 5.5, "y": 0},
+                {"label": "F6", "matrix": [0, 6], "x": 6.5, "y": 0},
+                {"label": "F7", "matrix": [0, 7], "x": 7.5, "y": 0},
+                {"label": "F8", "matrix": [0, 8], "x": 8.5, "y": 0},
 
-                {"matrix": [0, 9], "x": 9.75, "y": 0},
-                {"matrix": [0, 10], "x": 10.75, "y": 0},
-                {"matrix": [0, 11], "x": 11.75, "y": 0},
-                {"matrix": [0, 12], "x": 12.75, "y": 0},
+                {"label": "F9", "matrix": [0, 9], "x": 9.75, "y": 0},
+                {"label": "F10", "matrix": [0, 10], "x": 10.75, "y": 0},
+                {"label": "F11", "matrix": [0, 11], "x": 11.75, "y": 0},
+                {"label": "F12", "matrix": [0, 12], "x": 12.75, "y": 0},
 
-                {"matrix": [0, 13], "x": 14, "y": 0},
+                {"label": "F13", "matrix": [0, 13], "x": 14, "y": 0},
 
-                {"matrix": [1, 0], "x": 0, "y": 1.5},
-                {"matrix": [1, 1], "x": 1, "y": 1.5},
-                {"matrix": [1, 2], "x": 2, "y": 1.5},
-                {"matrix": [1, 3], "x": 3, "y": 1.5},
-                {"matrix": [1, 4], "x": 4, "y": 1.5},
-                {"matrix": [1, 5], "x": 5, "y": 1.5},
-                {"matrix": [1, 6], "x": 6, "y": 1.5},
-                {"matrix": [1, 7], "x": 7, "y": 1.5},
-                {"matrix": [1, 8], "x": 8, "y": 1.5},
-                {"matrix": [1, 9], "x": 9, "y": 1.5},
-                {"matrix": [1, 10], "x": 10, "y": 1.5},
-                {"matrix": [1, 11], "x": 11, "y": 1.5},
-                {"matrix": [1, 12], "x": 12, "y": 1.5},
-                {"matrix": [1, 13], "x": 13, "y": 1.5},
-                {"matrix": [3, 12], "x": 14, "y": 1.5},
+                {"label": "`", "matrix": [1, 0], "x": 0, "y": 1.5},
+                {"label": "1", "matrix": [1, 1], "x": 1, "y": 1.5},
+                {"label": "2", "matrix": [1, 2], "x": 2, "y": 1.5},
+                {"label": "3", "matrix": [1, 3], "x": 3, "y": 1.5},
+                {"label": "4", "matrix": [1, 4], "x": 4, "y": 1.5},
+                {"label": "5", "matrix": [1, 5], "x": 5, "y": 1.5},
+                {"label": "6", "matrix": [1, 6], "x": 6, "y": 1.5},
+                {"label": "7", "matrix": [1, 7], "x": 7, "y": 1.5},
+                {"label": "8", "matrix": [1, 8], "x": 8, "y": 1.5},
+                {"label": "9", "matrix": [1, 9], "x": 9, "y": 1.5},
+                {"label": "0", "matrix": [1, 10], "x": 10, "y": 1.5},
+                {"label": "-", "matrix": [1, 11], "x": 11, "y": 1.5},
+                {"label": "=", "matrix": [1, 12], "x": 12, "y": 1.5},
+                {"label": "\\", "matrix": [1, 13], "x": 13, "y": 1.5},
+                {"label": "Delete", "matrix": [3, 12], "x": 14, "y": 1.5},
 
-                {"matrix": [2, 0], "x": 0, "y": 2.5, "w": 1.5},
-                {"matrix": [2, 1], "x": 1.5, "y": 2.5},
-                {"matrix": [2, 2], "x": 2.5, "y": 2.5},
-                {"matrix": [2, 3], "x": 3.5, "y": 2.5},
-                {"matrix": [2, 4], "x": 4.5, "y": 2.5},
-                {"matrix": [2, 5], "x": 5.5, "y": 2.5},
-                {"matrix": [2, 6], "x": 6.5, "y": 2.5},
-                {"matrix": [2, 7], "x": 7.5, "y": 2.5},
-                {"matrix": [2, 8], "x": 8.5, "y": 2.5},
-                {"matrix": [2, 9], "x": 9.5, "y": 2.5},
-                {"matrix": [2, 10], "x": 10.5, "y": 2.5},
-                {"matrix": [2, 11], "x": 11.5, "y": 2.5},
-                {"matrix": [2, 12], "x": 12.5, "y": 2.5},
-                {"matrix": [2, 13], "x": 13.5, "y": 2.5, "w": 1.5},
+                {"label": "Tab", "matrix": [2, 0], "x": 0, "y": 2.5, "w": 1.5},
+                {"label": "Q", "matrix": [2, 1], "x": 1.5, "y": 2.5},
+                {"label": "W", "matrix": [2, 2], "x": 2.5, "y": 2.5},
+                {"label": "E", "matrix": [2, 3], "x": 3.5, "y": 2.5},
+                {"label": "R", "matrix": [2, 4], "x": 4.5, "y": 2.5},
+                {"label": "T", "matrix": [2, 5], "x": 5.5, "y": 2.5},
+                {"label": "Y", "matrix": [2, 6], "x": 6.5, "y": 2.5},
+                {"label": "U", "matrix": [2, 7], "x": 7.5, "y": 2.5},
+                {"label": "I", "matrix": [2, 8], "x": 8.5, "y": 2.5},
+                {"label": "O", "matrix": [2, 9], "x": 9.5, "y": 2.5},
+                {"label": "P", "matrix": [2, 10], "x": 10.5, "y": 2.5},
+                {"label": "[", "matrix": [2, 11], "x": 11.5, "y": 2.5},
+                {"label": "]", "matrix": [2, 12], "x": 12.5, "y": 2.5},
+                {"label": "Backspace", "matrix": [2, 13], "x": 13.5, "y": 2.5, "w": 1.5},
 
-                {"matrix": [3, 0], "x": 0, "y": 3.5, "w": 1.75},
-                {"matrix": [3, 1], "x": 1.75, "y": 3.5},
-                {"matrix": [3, 2], "x": 2.75, "y": 3.5},
-                {"matrix": [3, 3], "x": 3.75, "y": 3.5},
-                {"matrix": [3, 4], "x": 4.75, "y": 3.5},
-                {"matrix": [3, 5], "x": 5.75, "y": 3.5},
-                {"matrix": [3, 6], "x": 6.75, "y": 3.5},
-                {"matrix": [3, 7], "x": 7.75, "y": 3.5},
-                {"matrix": [3, 8], "x": 8.75, "y": 3.5},
-                {"matrix": [3, 9], "x": 9.75, "y": 3.5},
-                {"matrix": [3, 10], "x": 10.75, "y": 3.5},
-                {"matrix": [3, 11], "x": 11.75, "y": 3.5},
-                {"matrix": [3, 13], "x": 12.75, "y": 3.5, "w": 2.25},
+                {"label": "Control", "matrix": [3, 0], "x": 0, "y": 3.5, "w": 1.75},
+                {"label": "A", "matrix": [3, 1], "x": 1.75, "y": 3.5},
+                {"label": "S", "matrix": [3, 2], "x": 2.75, "y": 3.5},
+                {"label": "D", "matrix": [3, 3], "x": 3.75, "y": 3.5},
+                {"label": "F", "matrix": [3, 4], "x": 4.75, "y": 3.5},
+                {"label": "G", "matrix": [3, 5], "x": 5.75, "y": 3.5},
+                {"label": "H", "matrix": [3, 6], "x": 6.75, "y": 3.5},
+                {"label": "J", "matrix": [3, 7], "x": 7.75, "y": 3.5},
+                {"label": "K", "matrix": [3, 8], "x": 8.75, "y": 3.5},
+                {"label": "L", "matrix": [3, 9], "x": 9.75, "y": 3.5},
+                {"label": ";", "matrix": [3, 10], "x": 10.75, "y": 3.5},
+                {"label": "'", "matrix": [3, 11], "x": 11.75, "y": 3.5},
+                {"label": "Enter", "matrix": [3, 13], "x": 12.75, "y": 3.5, "w": 2.25},
 
-                {"matrix": [4, 0], "x": 0, "y": 4.5, "w": 2.25},
-                {"matrix": [4, 2], "x": 2.25, "y": 4.5},
-                {"matrix": [4, 3], "x": 3.25, "y": 4.5},
-                {"matrix": [4, 4], "x": 4.25, "y": 4.5},
-                {"matrix": [4, 5], "x": 5.25, "y": 4.5},
-                {"matrix": [4, 6], "x": 6.25, "y": 4.5},
-                {"matrix": [4, 7], "x": 7.25, "y": 4.5},
-                {"matrix": [4, 8], "x": 8.25, "y": 4.5},
-                {"matrix": [4, 9], "x": 9.25, "y": 4.5},
-                {"matrix": [4, 10], "x": 10.25, "y": 4.5},
-                {"matrix": [4, 11], "x": 11.25, "y": 4.5},
-                {"matrix": [4, 12], "x": 12.25, "y": 4.5, "w": 1.75},
-                {"matrix": [4, 13], "x": 14, "y": 4.5},
+                {"label": "Shift", "matrix": [4, 0], "x": 0, "y": 4.5, "w": 2.25},
+                {"label": "Z", "matrix": [4, 2], "x": 2.25, "y": 4.5},
+                {"label": "X", "matrix": [4, 3], "x": 3.25, "y": 4.5},
+                {"label": "C", "matrix": [4, 4], "x": 4.25, "y": 4.5},
+                {"label": "V", "matrix": [4, 5], "x": 5.25, "y": 4.5},
+                {"label": "B", "matrix": [4, 6], "x": 6.25, "y": 4.5},
+                {"label": "N", "matrix": [4, 7], "x": 7.25, "y": 4.5},
+                {"label": "M", "matrix": [4, 8], "x": 8.25, "y": 4.5},
+                {"label": ",", "matrix": [4, 9], "x": 9.25, "y": 4.5},
+                {"label": ".", "matrix": [4, 10], "x": 10.25, "y": 4.5},
+                {"label": "/", "matrix": [4, 11], "x": 11.25, "y": 4.5},
+                {"label": "Shift", "matrix": [4, 12], "x": 12.25, "y": 4.5, "w": 1.75},
+                {"label": "Fn", "matrix": [4, 13], "x": 14, "y": 4.5},
 
-                {"matrix": [5, 0], "x": 0, "y": 5.5, "w": 1.5},
-                {"matrix": [5, 2], "x": 1.5, "y": 5.5},
-                {"matrix": [5, 3], "x": 2.5, "y": 5.5, "w": 1.5},
-                {"matrix": [5, 7], "x": 4, "y": 5.5, "w": 7},
-                {"matrix": [5, 11], "x": 11, "y": 5.5, "w": 1.5},
-                {"matrix": [5, 12], "x": 12.5, "y": 5.5},
-                {"matrix": [5, 13], "x": 13.5, "y": 5.5, "w": 1.5}
+                {"label": "Caps Lock", "matrix": [5, 0], "x": 0, "y": 5.5, "w": 1.5},
+                {"label": "GUI", "matrix": [5, 2], "x": 1.5, "y": 5.5},
+                {"label": "Alt", "matrix": [5, 3], "x": 2.5, "y": 5.5, "w": 1.5},
+                {"label": "Space", "matrix": [5, 7], "x": 4, "y": 5.5, "w": 7},
+                {"label": "Alt", "matrix": [5, 11], "x": 11, "y": 5.5, "w": 1.5},
+                {"label": "GUI", "matrix": [5, 12], "x": 12.5, "y": 5.5},
+                {"label": "Ctrl", "matrix": [5, 13], "x": 13.5, "y": 5.5, "w": 1.5}
             ]
         }
     }
diff --git a/keyboards/mc_76k/keymaps/default/keymap.c b/keyboards/mc_76k/keymaps/default/keymap.c
index bf572d3c6e..9d00f79a9a 100644
--- a/keyboards/mc_76k/keymaps/default/keymap.c
+++ b/keyboards/mc_76k/keymaps/default/keymap.c
@@ -16,7 +16,7 @@
 #include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-    [0] = LAYOUT_all( /* Base */
+    [0] = LAYOUT( /* Base */
     KC_ESC,  KC_F1,   KC_F2,   KC_F3, KC_F4, KC_F5, KC_F6, KC_F7,  KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_F13,
     KC_GRV,  KC_1,    KC_2,    KC_3,  KC_4,  KC_5,  KC_6,  KC_7,   KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSLS, KC_DEL,
     KC_TAB,  KC_Q,    KC_W,    KC_E,  KC_R,  KC_T,  KC_Y,  KC_U,   KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSPC,
@@ -24,7 +24,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     KC_LSFT, KC_Z,    KC_X,    KC_C,  KC_V,  KC_B,  KC_N,  KC_M,   KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, MO(1),
     KC_CAPS, KC_LGUI, KC_LALT,                             KC_SPC,                            KC_RALT, KC_RGUI, KC_RCTL),
 
-    [1] = LAYOUT_all( /* FN1 */
+    [1] = LAYOUT( /* FN1 */
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PSCR,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_HOME, KC_UP,   KC_END,  KC_TRNS,
@@ -32,7 +32,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_END,  KC_PGDN, KC_DOWN,          KC_TRNS, KC_TRNS,
     KC_LCTL, KC_TRNS, KC_TRNS,                            KC_TRNS,                            KC_TRNS, KC_TRNS, KC_TRNS),
 
-    [2] = LAYOUT_all( /* Empty for dynamic keymaps */
+    [2] = LAYOUT( /* Empty for dynamic keymaps */
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
@@ -40,7 +40,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,          KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS,                            KC_TRNS,                            KC_TRNS, KC_TRNS, KC_TRNS),
 
-    [3] = LAYOUT_all( /* Empty for dynamic keymaps */
+    [3] = LAYOUT( /* Empty for dynamic keymaps */
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
diff --git a/keyboards/mc_76k/keymaps/via/keymap.c b/keyboards/mc_76k/keymaps/via/keymap.c
index bf572d3c6e..9d00f79a9a 100644
--- a/keyboards/mc_76k/keymaps/via/keymap.c
+++ b/keyboards/mc_76k/keymaps/via/keymap.c
@@ -16,7 +16,7 @@
 #include QMK_KEYBOARD_H
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-    [0] = LAYOUT_all( /* Base */
+    [0] = LAYOUT( /* Base */
     KC_ESC,  KC_F1,   KC_F2,   KC_F3, KC_F4, KC_F5, KC_F6, KC_F7,  KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_F13,
     KC_GRV,  KC_1,    KC_2,    KC_3,  KC_4,  KC_5,  KC_6,  KC_7,   KC_8,    KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSLS, KC_DEL,
     KC_TAB,  KC_Q,    KC_W,    KC_E,  KC_R,  KC_T,  KC_Y,  KC_U,   KC_I,    KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSPC,
@@ -24,7 +24,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     KC_LSFT, KC_Z,    KC_X,    KC_C,  KC_V,  KC_B,  KC_N,  KC_M,   KC_COMM, KC_DOT,  KC_SLSH,          KC_RSFT, MO(1),
     KC_CAPS, KC_LGUI, KC_LALT,                             KC_SPC,                            KC_RALT, KC_RGUI, KC_RCTL),
 
-    [1] = LAYOUT_all( /* FN1 */
+    [1] = LAYOUT( /* FN1 */
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_PSCR,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_HOME, KC_UP,   KC_END,  KC_TRNS,
@@ -32,7 +32,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_END,  KC_PGDN, KC_DOWN,          KC_TRNS, KC_TRNS,
     KC_LCTL, KC_TRNS, KC_TRNS,                            KC_TRNS,                            KC_TRNS, KC_TRNS, KC_TRNS),
 
-    [2] = LAYOUT_all( /* Empty for dynamic keymaps */
+    [2] = LAYOUT( /* Empty for dynamic keymaps */
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
@@ -40,7 +40,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,          KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS,                            KC_TRNS,                            KC_TRNS, KC_TRNS, KC_TRNS),
 
-    [3] = LAYOUT_all( /* Empty for dynamic keymaps */
+    [3] = LAYOUT( /* Empty for dynamic keymaps */
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
     KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,
diff --git a/keyboards/mc_76k/matrix_diagram.md b/keyboards/mc_76k/matrix_diagram.md
new file mode 100644
index 0000000000..3bf8419373
--- /dev/null
+++ b/keyboards/mc_76k/matrix_diagram.md
@@ -0,0 +1,18 @@
+# Matrix Diagram for MC-76K
+
+```
+┌───┐┌───┬───┬───┬───┐┌───┬───┬───┬───┐┌───┬───┬───┬───┐┌───┐
+│00 ││01 │02 │03 │04 ││05 │06 │07 │08 ││09 │0A │0B │0C ││0D │
+└───┘└───┴───┴───┴───┘└───┴───┴───┴───┘└───┴───┴───┴───┘└───┘
+┌───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┬───┐
+│10 │11 │12 │13 │14 │15 │16 │17 │18 │19 │1A │1B │1C │1D │3C │
+├───┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴───┤
+│20   │21 │22 │23 │24 │25 │26 │27 │28 │29 │2A │2B │2C │2D   │
+├─────┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴┬──┴─────┤
+│30    │31 │32 │33 │34 │35 │36 │37 │38 │39 │3A │3B │3D      │
+├──────┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴─┬─┴────┬───┤
+│40      │42 │43 │44 │45 │46 │47 │48 │49 │4A │4B │4C    │4D │
+├─────┬──┴┬──┴──┬┴───┴───┴───┴───┴───┴───┴──┬┴───┴┬───┬─┴───┤
+│50   │52 │53   │57                         │5B   │5C │5D   │
+└─────┴───┴─────┴───────────────────────────┴─────┴───┴─────┘
+```