feat(extensions): most of the extensions implementation, by kdb424

boards/tg4x/README.md

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+# TG4X
+
+![TG4X](https://boardsource.imgix.net/d50e1163-06dd-4c18-826e-caacd0a4a33d.jpg?raw=true)
+
+TG4X is a 45% staggered keyboard, compared to a standard 40% stagger it has one additional column which makes it an approachable and highly use-able 40%-ish stagger. 
+
+kb.py is designed to work with the nice!nano
+
+Retailers (USA)  
+[Boardsource](https://boardsource.xyz/store/5eff7ead037395179221b90c)  
+
+Extentions enabled by default  
+- [Layers](https://github.com/KMKfw/kmk_firmware/tree/master/docs/layers.md) Need more keys than switches? Use layers.
+- [RGB](https://github.com/KMKfw/kmk_firmware/tree/master/docs/rgb.md) Light it up
+
+Common Extentions
+- [Power](https://github.com/KMKfw/kmk_firmware/tree/master/docs/power.md) Powersaving features for battery life

boards/tg4x/kb.py

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+import board
+
+from kmk.kmk_keyboard import KMKKeyboard as _KMKKeyboard
+from kmk.matrix import DiodeOrientation
+
+
+class KMKKeyboard(_KMKKeyboard):
+    row_pins = (
+        board.P1_06,
+        board.P1_04,
+        board.P0_11,
+        board.P1_00,
+        board.P0_24,
+        board.P0_22,
+        board.P0_20,
+        board.P0_17,
+    )
+    col_pins = [
+        board.P0_06,
+        board.P1_11,
+        board.P1_13,
+        board.P1_15,
+        board.P0_02,
+        board.P0_29,
+        board.P0_31,
+    ]
+    diode_orientation = DiodeOrientation.COLUMNS
+    rgb_pixel_pin = board.P0_08
+    rgb_num_pixels = 6
+    i2c = board.I2C
+    powersave_pin = board.P0_13

boards/tg4x/main.py

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+from kb import KMKKeyboard
+from kmk.extensions.rgb import RGB
+from kmk.keys import KC
+from kmk.modules.layers import Layers
+
+keyboard = KMKKeyboard()
+
+# Cleaner key names
+_______ = KC.TRNS
+XXXXXXX = KC.NO
+
+# Adding extentions
+rgb = RGB(pixel_pin=keyboard.rgb_pixel_pin, num_pixels=keyboard.rgb_num_pixels, val_limit=100, hue_default=190, sat_default=100, val_default=5)
+
+layers_ext = Layers()
+
+keyboard.modules = [layers_ext]
+keyboard.extensions = [rgb]
+
+keyboard.keymap = [
+    [  #QWERTY
+        KC.ESC, KC.Q, KC.W, KC.E, KC.R, KC.T, KC.Y, KC.U, KC.I, KC.O, KC.P, KC.MINS, KC.DEL,\
+        KC.TAB, KC.A, KC.S, KC.D, KC.F, KC.G, KC.H, KC.J, KC.K, KC.L, KC.QUOT, KC.ENT,\
+        KC.LSFT, KC.Z, KC.X, KC.C, KC.V, KC.B, KC.N, KC.M, KC.COMM, KC.DOT, KC.SLSH, KC.RSFT,\
+        KC.LCTL, KC.LGUI, KC.LALT, KC.SPACE, KC.SPACE, KC.RALT, KC.RGUI, KC.RCTL, KC.MO(1)\
+    ],
+    [  #LOWER
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______
+    ],
+]
+
+if __name__ == '__main__':
+    keyboard.go()