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diff --git a/circuitpython/shared-module/displayio/Group.h b/circuitpython/shared-module/displayio/Group.h
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+++ b/circuitpython/shared-module/displayio/Group.h
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+/*
+ * This file is part of the Micro Python project, http://micropython.org/
+ *
+ * The MIT License (MIT)
+ *
+ * Copyright (c) 2018 Scott Shawcroft for Adafruit Industries
+ *
+ * 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.
+ */
+
+#ifndef MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_GROUP_H
+#define MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_GROUP_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "py/obj.h"
+#include "py/objlist.h"
+#include "shared-module/displayio/area.h"
+#include "shared-module/displayio/Palette.h"
+
+typedef struct {
+    mp_obj_base_t base;
+    mp_obj_list_t *members;
+    displayio_buffer_transform_t absolute_transform;
+    displayio_area_t dirty_area; // Catch all for changed area
+    int16_t x;
+    int16_t y;
+    uint16_t scale;
+    bool item_removed : 1;
+    bool in_group : 1;
+    bool hidden : 1;
+    bool hidden_by_parent : 1;
+    uint8_t padding : 4;
+} displayio_group_t;
+
+void displayio_group_construct(displayio_group_t *self, mp_obj_list_t *members, uint32_t scale, mp_int_t x, mp_int_t y);
+void displayio_group_set_hidden_by_parent(displayio_group_t *self, bool hidden);
+bool displayio_group_get_previous_area(displayio_group_t *group, displayio_area_t *area);
+bool displayio_group_fill_area(displayio_group_t *group, const _displayio_colorspace_t *colorspace, const displayio_area_t *area, uint32_t *mask, uint32_t *buffer);
+void displayio_group_update_transform(displayio_group_t *group, const displayio_buffer_transform_t *parent_transform);
+void displayio_group_finish_refresh(displayio_group_t *self);
+displayio_area_t *displayio_group_get_refresh_areas(displayio_group_t *self, displayio_area_t *tail);
+
+#endif // MICROPY_INCLUDED_SHARED_MODULE_DISPLAYIO_GROUP_H