Creates a layouts/ folder for keymaps shared between keyboards (#1609)

* include variables and .h files as pp directives

* start layout compilation

* split ergodoxes up

* don't compile all layouts for everything

* might seg fault

* reset layouts variable

* actually reset layouts

* include rules.mk instead

* remove includes from rules.mk

* update variable setting

* load visualizer from path

* adds some more examples

* adds more layouts

* more boards added

* more boards added

* adds documentation for layouts

* use lowercase names for LAYOUT_

* add layout.json files for each layout

* add community folder, default keymaps for layouts

* touch-up default layouts

* touch-up layouts, some keyboard rules.mk

* update documentation for layouts

* fix up serial/i2c switches

5 files changed, 521 insertions, 0 deletions

diff --git a/layouts/community/ergodox/belak/LICENSE b/layouts/community/ergodox/belak/LICENSE
new file mode 100644
index 000000000..b462ba30e
--- /dev/null
+++ b/layouts/community/ergodox/belak/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2016 Kaleb Elwert
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/layouts/community/ergodox/belak/README.md b/layouts/community/ergodox/belak/README.md
new file mode 100644
index 000000000..30484e6e2
--- /dev/null
+++ b/layouts/community/ergodox/belak/README.md
@@ -0,0 +1,79 @@
+# Belak's Ergodox Layout
+
+This has been based off of [emacs\_osx\_dk](https://github.com/jackhumbert/qmk_firmware/tree/master/keyboards/ergodox/keymaps/emacs_osx_dk)
+from the main qmk repo. However, I've taken some of the ideas for the thumbs
+from [dvorak\_emacs](https://github.com/jackhumbert/qmk_firmware/tree/master/keyboards/ergodox/keymaps/dvorak_emacs)
+and tweaked it a bit based on the keycaps I have.
+
+This keyboard is intended for use in emacs (one of the main reasons for easy
+access to modifiers) but it could be useful in other instances as well.
+
+The main repo is used as a testbed, so sometimes the layout may be in a strange
+state. The qmk version should be relatively stable.
+
+## Instructions
+
+This is currently being used on a regular ergodox, but it should work fine on
+the infinity as well. Though, you may have to modify the commands to build and
+flash the firmware to match the separate halves as defined in the infinity
+documentation.
+
+If you are using this keymap in the qmk repo, you should be able to just run
+`make ergodox-belak-teensy`. If you're using this externally (I sometimes make
+changes before syncing them to qmk), use the following instructions:
+
+1. Clone the main qmk repo
+2. Clone this to `$QMK/keyboards/ergodox/keymaps/belak-external`
+3. Run `make ergodox-belak-external-teensy` from the root of the qmk repo.
+
+## Changelog
+
+Fifth Revision
+
+* Change layer keys to tap-dance keys which cycle through additional layers
+* Add a few emoji keys (in preparation for an emoji layer)
+
+Fourth Revision
+
+* Remove media layer
+* Add a layer which swaps control and gui on the thumb keys.
+* Add some basic code to save settings to the eeprom
+* Save the state of the keys swapped in the thumb in the eeprom
+
+Third Revision
+
+* Add numpad layer and remove numpad from symbols layer
+* Disable media layer
+* Add arrow keys on ijkl to the symbols layer
+* Replace ALT on held enter and held delete with GUI (for better OSX
+  compatibility, as there's already an ALT key relatively close)
+* Replace keys above enter and delete with temporary layer switch buttons not
+  matching the other layer switch for that hand.
+* Reindent and space out most of the layer definitions
+
+Second Revision
+
+* Clean up definitions to make differences between layers easier to see
+* Remove old LCD code
+* Add new LCD code based on fredizzimo's branch
+
+First Revision
+
+* Reverse grave and escape
+
+Initial Version
+
+* Copy from emacs\_osx\_dk
+* "Fix" right alt
+* Change thumb keys to match default layout (backspace, delete, enter, space)
+* Add modifiers to thumb keys (ctrl to backspace and space, alt to delete and
+  enter)
+* Replace the RAlt below the brackets with LGui and RGui
+* Remove LCtrl and RCtrl from the keys above shift
+* Add browser forward, and move browser back
+* "Fix" the order of volume keys
+
+## Repository
+
+The original code for this is kept at https://github.com/belak/ergodox-layout and
+is synced to qmk every few main revisions.
diff --git a/layouts/community/ergodox/belak/keymap.c b/layouts/community/ergodox/belak/keymap.c
new file mode 100644
index 000000000..016cf30b4
--- /dev/null
+++ b/layouts/community/ergodox/belak/keymap.c
@@ -0,0 +1,368 @@
+#include QMK_KEYBOARD_H
+#include "debug.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+#include "eeprom.h"
+
+#define LAYER_ON(pos) ((layer_state) & (1<<(pos)))
+#define _______ KC_TRNS
+
+#define EECONFIG_BELAK_MAGIC (uint16_t)0xBE42
+
+// NOTE: This is just a number that's a bit beyond the end of what's already
+// defined. As there is no other define we can base this on, it may need to be
+// changed in the future. The initial value here is used as a placeholder with a
+// magic word, similar to the normal eeconfig. Note that all the storage being
+// used needs to fit inside the 32 bytes of the Ergodox Infinity.
+#define EECONFIG_BELAK (uint16_t *)16
+
+// The correct way to do this would be how the normal eeconfig handles it and
+// use a bitfield. However, the eeprom has a ton of space which isn't being
+// used so I don't really care and have a separate byte for every setting.
+#define EECONFIG_BELAK_SWAP_GUI_CTRL (uint8_t *)18
+
+static uint8_t swap_gui_ctrl = 0;
+static uint8_t td_led_override = 0;
+
+enum belak_keycodes {
+    // Function codes
+    BEL_F0 = SAFE_RANGE,
+    BEL_F1,
+
+    E_SHRUG,
+    E_TFLIP,
+    E_TSET,
+};
+
+inline void tap(uint16_t keycode) {
+    register_code(keycode);
+    unregister_code(keycode);
+};
+
+// TODO: Add LED support to the tap dance by using the advanced macro
+#define LTOGGLE TD(TD_LAYER_TOGGLE)
+
+#define BASE 0 // default layer
+#define SYMB 1 // symbols
+#define NUMP 2 // numpad
+#define SWPH 3 // swap gui/ctrl on the hands
+
+enum belak_td {
+    TD_LAYER_TOGGLE = 0,
+};
+
+void belak_td_each(qk_tap_dance_state_t *state, void *user_data);
+void belak_td_finished(qk_tap_dance_state_t *state, void *user_data);
+void belak_td_reset(qk_tap_dance_state_t *state, void *user_data);
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+    [TD_LAYER_TOGGLE] = ACTION_TAP_DANCE_FN_ADVANCED(belak_td_each, belak_td_finished, belak_td_reset),
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+/* Keymap 0: Basic layer
+ *
+ * ,--------------------------------------------------.           ,--------------------------------------------------.
+ * |   Esc  |   1  |   2  |   3  |   4  |   5  |  L1  |           |  L2  |   6  |   7  |   8  |   9  |   0  |   =    |
+ * |--------+------+------+------+------+-------------|           |------+------+------+------+------+------+--------|
+ * |   Tab  |   Q  |   W  |   E  |   R  |   T  |  [   |           |   ]  |   Y  |   U  |   I  |   O  |   P  |   -    |
+ * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
+ * |    \   |   A  |   S  |   D  |   F  |   G  |------|           |------|   H  |   J  |   K  |   L  |   ;  |   '    |
+ * |--------+------+------+------+------+------| LGui |           | RGui |------+------+------+------+------+--------|
+ * | LShift |   Z  |   X  |   C  |   V  |   B  |      |           |      |   N  |   M  |   ,  |   .  |   /  | RShift |
+ * `--------+------+------+------+------+-------------'           `-------------+------+------+------+------+--------'
+ *   |Layers| LCtrl| Left | Right| LAlt |                                       | RAlt | Up   | Down | RCtrl|Layers|
+ *   `----------------------------------'                                       `----------------------------------'
+ *                                        ,-------------.       ,--------------.
+ *                                        |  ~L2 | Ins  |       | Grv  | ~L1   |
+ *                                ,-------|------|------|       |------+-------+-------.
+ *                                | Back  |      | Home |       | PgUp |       |       |
+ *                                | Space | Del  |------|       |------| Enter | Space |
+ *                                |       |      | End  |       | PgDn |       |       |
+ *                                `---------------------'       `----------------------'
+ */
+    [BASE] = LAYOUT_ergodox(  // layer 0 : default
+        // left hand
+        KC_ESC,         KC_1,         KC_2,   KC_3,   KC_4,   KC_5,   TG(SYMB),
+        KC_TAB,         KC_Q,         KC_W,   KC_E,   KC_R,   KC_T,   KC_LBRC,
+        CTL_T(KC_BSLS), KC_A,         KC_S,   KC_D,   KC_F,   KC_G,
+        KC_LSFT,        KC_Z,         KC_X,   KC_C,   KC_V,   KC_B,   KC_LGUI,
+        LTOGGLE,        KC_LCTRL,     KC_LEFT,KC_RGHT,KC_LALT,
+                                                     MO(NUMP),KC_INS,
+                                                              KC_HOME,
+                                 CTL_T(KC_BSPC),GUI_T(KC_DEL),KC_END,
+        // right hand
+        TG(NUMP),    KC_6,   KC_7,   KC_8,   KC_9,   KC_0,             KC_EQL,
+        KC_RBRC,     KC_Y,   KC_U,   KC_I,   KC_O,   KC_P,             KC_MINS,
+                     KC_H,   KC_J,   KC_K,   KC_L,   KC_SCLN,          KC_QUOT,
+        KC_RGUI,     KC_N,   KC_M,   KC_COMM,KC_DOT, KC_SLSH,          KC_RSFT,
+                             KC_RALT,KC_UP,  KC_DOWN,KC_RCTRL,         LTOGGLE,
+        KC_GRV,      MO(SYMB),
+        KC_PGUP,
+        KC_PGDN,     GUI_T(KC_ENT), CTL_T(KC_SPC)
+    ),
+/* Keymap 1: Symbol Layer
+ *
+ * ,--------------------------------------------------.           ,--------------------------------------------------.
+ * |        |  F1  |  F2  |  F3  |  F4  |  F5  |      |           |      |  F6  |  F7  |  F8  |  F9  |  F10 |   F11  |
+ * |--------+------+------+------+------+-------------|           |------+------+------+------+------+------+--------|
+ * |        |   !  |   @  |   {  |   }  |   |  |      |           |      |   Up |      |  Up  |      |      |   F12  |
+ * |--------+------+------+------+------+------| TFLIP|           | TSET |------+------+------+------+------+--------|
+ * |        |   #  |   $  |   (  |   )  |   `  |------|           |------| Down | Left | Down | Rght |      |        |
+ * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
+ * |        |   %  |   ^  |   [  |   ]  |   ~  | SHRUG|           |      |   &  |      |      |      |      |        |
+ * `--------+------+------+------+------+-------------'           `-------------+------+------+------+------+--------'
+ *   |LClear|      |      |      |      |                                       |      |      |      |      |LClear|
+ *   `----------------------------------'                                       `----------------------------------'
+ *                                        ,-------------.       ,-------------.
+ *                                        | TOGL |      |       |      | TOGL |
+ *                                 ,------|------|------|       |------+------+------.
+ *                                 |      |      |      |       |      |      |      |
+ *                                 |      |      |------|       |------|      |      |
+ *                                 |      |      |      |       |      |      |      |
+ *                                 `--------------------'       `--------------------'
+ */
+    [SYMB] = LAYOUT_ergodox(
+        // left hand
+        _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   E_TFLIP,
+        _______, KC_EXLM, KC_AT,   KC_LCBR, KC_RCBR, KC_PIPE, E_TSET,
+        _______, KC_HASH, KC_DLR,  KC_LPRN, KC_RPRN, KC_GRV,
+        _______, KC_PERC, KC_CIRC, KC_LBRC, KC_RBRC, KC_TILD, E_SHRUG,
+        BEL_F1,  _______, _______, _______, _______,
+                                                     BEL_F0,  _______,
+                                                              _______,
+                                            _______, _______, _______,
+        // right hand
+        _______, KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,
+        _______, KC_UP,   _______, KC_UP,   _______, _______, KC_F12,
+                 KC_DOWN, KC_LEFT, KC_DOWN, KC_RGHT, _______, _______,
+        _______, KC_AMPR, _______, _______, _______, _______, _______,
+                          _______, _______, _______, _______, BEL_F1,
+        _______, BEL_F0,
+        _______,
+        _______, _______, _______
+    ),
+/* Keymap 2: Numpad Layer
+ *
+ * ,--------------------------------------------------.           ,--------------------------------------------------.
+ * |        |      |      |      |      |      |      |           |      |      |      |      |      |      |        |
+ * |--------+------+------+------+------+-------------|           |------+------+------+------+------+------+--------|
+ * |        |      |      |      |      |      |      |           |      |      |   7  |   8  |   9  |   *  |        |
+ * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
+ * |        |      |      |      |      |      |------|           |------|      |   4  |   5  |   6  |   +  |        |
+ * |--------+------+------+------+------+------|      |           |      |------+------+------+------+------+--------|
+ * |        |      |      |      |      |      |      |           |      |      |   1  |   2  |   3  |   \  |        |
+ * `--------+------+------+------+------+-------------'           `-------------+------+------+------+------+--------'
+ *   |LClear|      |      |      |      |                                       |   0  |    0 |   .  |   =  |LClear|
+ *   `----------------------------------'                                       `----------------------------------'
+ *                                        ,-------------.       ,-------------.
+ *                                        | TOGL |      |       |      | TOGL |
+ *                                 ,------|------|------|       |------+------+------.
+ *                                 |      |      |      |       |      |      |      |
+ *                                 |      |      |------|       |------|      |      |
+ *                                 |      |      |      |       |      |      |      |
+ *                                 `--------------------'       `--------------------'
+ */
+    [NUMP] = LAYOUT_ergodox(
+        // left hand
+        _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______,
+        BEL_F1,  _______, _______, _______, _______,
+                                                     BEL_F0,  _______,
+                                                              _______,
+                                            _______, _______, _______,
+        // right hand
+        _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, KC_7,    KC_8,    KC_9,    KC_ASTR, _______,
+                 _______, KC_4,    KC_5,    KC_6,    KC_PLUS, _______,
+        _______, _______, KC_1,    KC_2,    KC_3,    KC_BSLS, _______,
+                          KC_0,    KC_0,    KC_DOT,  KC_EQL,  BEL_F1,
+        _______, BEL_F0,
+        _______,
+        _______, _______, _______
+    ),
+/* Keymap 3: Swap control and gui on the thumb */
+    [SWPH] = LAYOUT_ergodox(
+        // left hand
+        _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______,
+                                                     _______, _______,
+                                                              _______,
+                               GUI_T(KC_BSPC), CTL_T(KC_DEL), _______,
+        // right hand
+        _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______,
+                 _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______,
+                          _______, _______, _______, _______, _______,
+        _______, _______,
+        _______,
+        _______, CTL_T(KC_ENT), GUI_T(KC_SPC)
+    ),
+};
+
+// Runs just one time when the keyboard initializes.
+void matrix_init_user(void) {
+    // If our magic word wasn't set properly, we need to zero out the settings.
+    if (eeprom_read_word(EECONFIG_BELAK) != EECONFIG_BELAK_MAGIC) {
+        eeprom_update_word(EECONFIG_BELAK, EECONFIG_BELAK_MAGIC);
+        eeprom_update_byte(EECONFIG_BELAK_SWAP_GUI_CTRL, 0);
+    }
+
+    if (eeprom_read_byte(EECONFIG_BELAK_SWAP_GUI_CTRL)) {
+        layer_on(SWPH);
+        swap_gui_ctrl = 1;
+    }
+};
+
+// Runs constantly in the background, in a loop.
+void matrix_scan_user(void) {
+    ergodox_board_led_off();
+    ergodox_right_led_1_off();
+    ergodox_right_led_2_off();
+    ergodox_right_led_3_off();
+
+    switch (td_led_override) {
+    case 1:
+        ergodox_right_led_1_on();
+        break;
+    case 2:
+        ergodox_right_led_2_on();
+        break;
+    default:
+        // Layer 1 and 2 are both overlay layers, so they could both be on. This
+        // means we can't use the lazy check of checking for the first significant
+        // bit.
+        if (LAYER_ON(SYMB)) {
+            ergodox_right_led_1_on();
+        }
+        if (LAYER_ON(NUMP)) {
+            ergodox_right_led_2_on();
+        }
+    }
+};
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    switch (keycode) {
+    case BEL_F0:
+        if(record->event.pressed){
+            swap_gui_ctrl = !swap_gui_ctrl;
+            eeprom_update_byte(EECONFIG_BELAK_SWAP_GUI_CTRL, swap_gui_ctrl);
+
+            if (swap_gui_ctrl) {
+                layer_on(SWPH);
+            } else {
+                layer_off(SWPH);
+            }
+
+            return false;
+        }
+        break;
+    case BEL_F1:
+        if(record->event.pressed){
+            layer_off(SYMB);
+            layer_off(NUMP);
+
+            return false;
+        }
+        break;
+    case E_SHRUG: // ¯\_(ツ)_/¯
+        if (record->event.pressed) {
+            process_unicode((0x00AF|QK_UNICODE), record);   // Hand
+            tap(KC_BSLS);                                   // Arm
+            register_code(KC_RSFT);
+            tap(KC_UNDS);                                   // Arm
+            tap(KC_LPRN);                                   // Head
+            unregister_code(KC_RSFT);
+            process_unicode((0x30C4|QK_UNICODE), record);   // Face
+            register_code(KC_RSFT);
+            tap(KC_RPRN);                                   // Head
+            tap(KC_UNDS);                                   // Arm
+            unregister_code(KC_RSFT);
+            tap(KC_SLSH);                                   // Arm
+            process_unicode((0x00AF|QK_UNICODE), record);   // Hand
+        }
+        return false;
+        break;
+    case E_TFLIP: // (╯°□°)╯ ︵ ┻━┻
+        if (record->event.pressed) {
+            register_code(KC_RSFT);
+            tap(KC_9);
+            unregister_code(KC_RSFT);
+            process_unicode((0x256F|QK_UNICODE), record);   // Arm
+            process_unicode((0x00B0|QK_UNICODE), record);   // Eye
+            process_unicode((0x25A1|QK_UNICODE), record);   // Mouth
+            process_unicode((0x00B0|QK_UNICODE), record);   // Eye
+            register_code(KC_RSFT);
+            tap(KC_0);
+            unregister_code(KC_RSFT);
+            process_unicode((0x256F|QK_UNICODE), record);   // Arm
+            tap(KC_SPC);
+            process_unicode((0x0361|QK_UNICODE), record);   // Flippy
+            tap(KC_SPC);
+            process_unicode((0x253B|QK_UNICODE), record);   // Table
+            process_unicode((0x2501|QK_UNICODE), record);   // Table
+            process_unicode((0x253B|QK_UNICODE), record);   // Table
+        }
+        return false;
+        break;
+    case E_TSET: // ┬──┬ ノ( ゜-゜ノ)
+        if (record->event.pressed) {
+            process_unicode((0x252C|QK_UNICODE), record);   // Table
+            process_unicode((0x2500|QK_UNICODE), record);   // Table
+            process_unicode((0x2500|QK_UNICODE), record);   // Table
+            process_unicode((0x252C|QK_UNICODE), record);   // Table
+            tap(KC_SPC);
+            process_unicode((0x30CE|QK_UNICODE), record);   // Arm
+            register_code(KC_RSFT);
+            tap(KC_9);
+            unregister_code(KC_RSFT);
+            tap(KC_SPC);
+            process_unicode((0x309C|QK_UNICODE), record);   // Eye
+            tap(KC_MINS);
+            process_unicode((0x309C|QK_UNICODE), record);   // Eye
+            process_unicode((0x30CE|QK_UNICODE), record);   // Arm
+            register_code(KC_RSFT);
+            tap(KC_0);
+            unregister_code(KC_RSFT);
+        }
+        return false;
+        break;
+    }
+
+    return true;
+}
+
+void belak_td_each(qk_tap_dance_state_t *state, void *user_data) {
+    switch (state->count) {
+    case 1:
+        td_led_override = 1;
+        break;
+    case 2:
+        td_led_override = 2;
+        break;
+    default:
+        reset_tap_dance(state);
+    }
+}
+
+void belak_td_finished(qk_tap_dance_state_t *state, void *user_data) {
+    switch (state->count) {
+    case 1:
+        layer_on(SYMB);
+        break;
+    case 2:
+        layer_on(NUMP);
+        break;
+    }
+    td_led_override = 0;
+}
+
+void belak_td_reset(qk_tap_dance_state_t *state, void *user_data) {
+    td_led_override = 0;
+}
diff --git a/layouts/community/ergodox/belak/rules.mk b/layouts/community/ergodox/belak/rules.mk
new file mode 100644
index 000000000..cd8fdec64
--- /dev/null
+++ b/layouts/community/ergodox/belak/rules.mk
@@ -0,0 +1,4 @@
+TAP_DANCE_ENABLE=yes
+UNICODE_ENABLE=yes
+
+
diff --git a/layouts/community/ergodox/belak/visualizer.c b/layouts/community/ergodox/belak/visualizer.c
new file mode 100644
index 000000000..b92890a66
--- /dev/null
+++ b/layouts/community/ergodox/belak/visualizer.c
@@ -0,0 +1,49 @@
+/*
+Copyright 2017 Fred Sundvik
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+// Currently we are assuming that both the backlight and LCD are enabled
+// But it's entirely possible to write a custom visualizer that use only
+// one of them
+#ifndef LCD_BACKLIGHT_ENABLE
+#error This visualizer needs that LCD backlight is enabled
+#endif
+
+#ifndef LCD_ENABLE
+#error This visualizer needs that LCD is enabled
+#endif
+
+#include "simple_visualizer.h"
+
+static void get_visualizer_layer_and_color(visualizer_state_t* state) {
+    uint8_t saturation = 60;
+    if (state->status.leds & (1u << USB_LED_CAPS_LOCK)) {
+        saturation = 255;
+    }
+
+    if (state->status.layer & 0x4) {
+        state->target_lcd_color = LCD_COLOR(0, saturation, 0xFF);
+        state->layer_text = "Media";
+    }
+    else if (state->status.layer & 0x2) {
+        state->target_lcd_color = LCD_COLOR(168, saturation, 0xFF);
+        state->layer_text = "Symbols";
+    }
+    else {
+        state->target_lcd_color = LCD_COLOR(84, saturation, 0xFF);
+        state->layer_text = "Base";
+    }
+}