diff --git a/keyboards/DeltaSplit75/DeltaSplit75.c b/keyboards/DeltaSplit75/DeltaSplit75.c
index b3d162ba9..6a73db4cd 100644
--- a/keyboards/DeltaSplit75/DeltaSplit75.c
+++ b/keyboards/DeltaSplit75/DeltaSplit75.c
@@ -1 +1 @@
-#include "DeltaSplit75.h"
\ No newline at end of file
+#include "deltasplit75.h"
\ No newline at end of file
diff --git a/keyboards/DeltaSplit75/DeltaSplit75.h b/keyboards/DeltaSplit75/DeltaSplit75.h
index 8931f73a5..31480f773 100644
--- a/keyboards/DeltaSplit75/DeltaSplit75.h
+++ b/keyboards/DeltaSplit75/DeltaSplit75.h
@@ -1,8 +1,8 @@
-#ifndef DeltaSplit75_H
-#define DeltaSplit75_H
+#ifndef deltasplit75_H
+#define deltasplit75_H
-#ifdef SUBPROJECT_V2
- #include "V2.h"
+#ifdef SUBPROJECT_v2
+ #include "v2.h"
#endif
#ifdef SUBPROJECT_ProtoSplit
#include "ProtoSplit.h"
diff --git a/keyboards/DeltaSplit75/Makefile b/keyboards/DeltaSplit75/Makefile
index a231dcfae..d1dec5330 100644
--- a/keyboards/DeltaSplit75/Makefile
+++ b/keyboards/DeltaSplit75/Makefile
@@ -1,4 +1,4 @@
-SUBPROJECT_DEFAULT = V2
+SUBPROJECT_DEFAULT = v2
ifndef MAKEFILE_INCLUDED
include ../../Makefile
diff --git a/keyboards/DeltaSplit75/V2/V2.c b/keyboards/DeltaSplit75/V2/V2.c
index 1199257d0..ce260ce7c 100644
--- a/keyboards/DeltaSplit75/V2/V2.c
+++ b/keyboards/DeltaSplit75/V2/V2.c
@@ -1,4 +1,4 @@
-#include "DeltaSplit75.h"
+#include "deltasplit75.h"
#ifdef AUDIO_ENABLE
float tone_startup[][2] = SONG(STARTUP_SOUND);
diff --git a/keyboards/DeltaSplit75/V2/V2.h b/keyboards/DeltaSplit75/V2/V2.h
index 84503e6b4..97be7eb0e 100644
--- a/keyboards/DeltaSplit75/V2/V2.h
+++ b/keyboards/DeltaSplit75/V2/V2.h
@@ -1,7 +1,7 @@
-#ifndef V2_H
-#define V2_H
+#ifndef v2_H
+#define v2_H
-#include "../DeltaSplit75.h"
+#include "../deltasplit75.h"
//void promicro_bootloader_jmp(bool program);
#include "quantum.h"
diff --git a/keyboards/DeltaSplit75/config.h b/keyboards/DeltaSplit75/config.h
index ea0498c50..f0d43dc3e 100644
--- a/keyboards/DeltaSplit75/config.h
+++ b/keyboards/DeltaSplit75/config.h
@@ -24,6 +24,6 @@ along with this program. If not, see .
#include "RightB/config.h"
#endif
#ifdef SUBPROJECT_V2
- #include "V2/config.h"
+ #include "v2/config.h"
#endif
#endif
diff --git a/keyboards/DeltaSplit75/keymaps/Default/config.h b/keyboards/DeltaSplit75/keymaps/Default/config.h
index 12a1402d9..56df3f160 100644
--- a/keyboards/DeltaSplit75/keymaps/Default/config.h
+++ b/keyboards/DeltaSplit75/keymaps/Default/config.h
@@ -23,8 +23,8 @@ along with this program. If not, see .
// #define EE_HANDS
-#ifdef SUBPROJECT_V2
- #include "../../V2/config.h"
+#ifdef SUBPROJECT_v2
+ #include "../../v2/config.h"
#endif
#ifdef SUBPROJECT_ProtoSplit
#include "../../ProtoSplit/config.h"
diff --git a/keyboards/DeltaSplit75/keymaps/Default/keymap.c b/keyboards/DeltaSplit75/keymaps/Default/keymap.c
index 85c6793a0..99707702b 100644
--- a/keyboards/DeltaSplit75/keymaps/Default/keymap.c
+++ b/keyboards/DeltaSplit75/keymaps/Default/keymap.c
@@ -1,4 +1,4 @@
-#include "DeltaSplit75.h"
+#include "deltasplit75.h"
#include "action_layer.h"
#include "eeconfig.h"
diff --git a/keyboards/deltasplit75/keymaps/itsaferbie/Makefile b/keyboards/deltasplit75/keymaps/itsaferbie/Makefile
new file mode 100644
index 000000000..52ef1ad3e
--- /dev/null
+++ b/keyboards/deltasplit75/keymaps/itsaferbie/Makefile
@@ -0,0 +1,5 @@
+RGBLIGHT_ENABLE = yes # Enable WS2812 RGB underlight. Do not enable this with audio at the same time.
+
+ifndef QUANTUM_DIR
+ include ../../../../Makefile
+endif
diff --git a/keyboards/deltasplit75/keymaps/itsaferbie/config.h b/keyboards/deltasplit75/keymaps/itsaferbie/config.h
new file mode 100644
index 000000000..56df3f160
--- /dev/null
+++ b/keyboards/deltasplit75/keymaps/itsaferbie/config.h
@@ -0,0 +1,31 @@
+/*
+Copyright 2012 Jun Wako
+
+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 .
+*/
+
+
+#define USE_SERIAL
+
+#define MASTER_LEFT
+// #define _MASTER_RIGHT
+// #define EE_HANDS
+
+
+#ifdef SUBPROJECT_v2
+ #include "../../v2/config.h"
+#endif
+#ifdef SUBPROJECT_ProtoSplit
+ #include "../../ProtoSplit/config.h"
+#endif
diff --git a/keyboards/deltasplit75/keymaps/itsaferbie/keymap.c b/keyboards/deltasplit75/keymaps/itsaferbie/keymap.c
new file mode 100644
index 000000000..37bc25ffc
--- /dev/null
+++ b/keyboards/deltasplit75/keymaps/itsaferbie/keymap.c
@@ -0,0 +1,46 @@
+#include "deltasplit75.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+
+// Fillers to make layering more clear
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ /* Layer 0: Default Layer
+ *,-----------------------------------------------------------------------.
+ * |Esc| F1| F2| F3| F4| F5| F6| F7| F8| F9| F10| F11| F12|Prnt|Ins|Del|
+ * |----------------------------------------------------------------------|
+ * | `| 1| 2| 3| 4| 5| 6| 7| 8| 9| 0| -| =| Bakspace | Home|
+ * |----------------------------------------------------------------------|
+ * |Tab | Q| W| E| R| T| Y| U| I| O| P| [| ]| \| PgUp|
+ * |----------------------------------------------------------------------|
+ * |Ctrl| A| S| D| F| G| H| J| K| L| ;| '|Enter | PgDown|
+ * |----------------------------------------------------------------------|
+ * |Shif| | Z| X| C| V| B| N| M| ,| .| /|Shift | Up| End|
+ * |----------------------------------------------------------------------|
+ * |CapsLo|Gui |Alt |Sp |Mod | Sp| Alt| Gui| Ctrl| | Lef| Dow| Rig|
+ * `----------------------------------------------------------------------'
+ */
+ KEYMAP(
+ 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_PSCR, KC_INS, KC_DEL,
+ 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_BSPC, KC_BSPC, KC_HOME,
+ 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_BSLS, KC_PGUP,
+ KC_LCTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_TRNS, KC_ENT, KC_PGDN,
+ KC_LSFT, KC_TRNS, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, KC_END,
+ KC_CAPS, KC_LGUI, KC_LALT, KC_SPC, MO(1), KC_SPC, KC_RALT, KC_RGUI, KC_RCTL, KC_LEFT, KC_DOWN, KC_RGHT),
+
+ KEYMAP(
+ RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, RESET,
+ RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, 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_VOLU,
+ 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_MPLY, KC_VOLD,
+ KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS, KC_MPRV, KC_STOP, KC_MNXT),
+
+};
\ No newline at end of file