diff --git a/package.json b/package.json
index e608fd8..04b9bfc 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,9 @@
       "watchface": true
     },
     "messageKeys": [
-      "dummy"
+      "BACKGROUND_COLOR",
+      "DIGIT_COLOR",
+      "FRAME_COLOR"
     ],
     "capabilities": [ "configurable" ],
     "resources": {
diff --git a/src/c/bitmaps.cpp b/src/c/bitmaps.cpp
index 5e2b4aa..bf060f4 100644
--- a/src/c/bitmaps.cpp
+++ b/src/c/bitmaps.cpp
@@ -4,95 +4,97 @@
 using namespace Pebble;
 
 // TODO move this to pebble-cpp
-bool operator==(const GColor8& lhs, const GColor8& rhs) { return lhs.argb == rhs.argb; }
-bool operator!=(const GColor8& lhs, const GColor8& rhs) { return lhs.argb != rhs.argb; }
+bool operator==(const GColor& lhs, const GColor& rhs) { return gcolor_equal(lhs, rhs); }
+bool operator!=(const GColor& lhs, const GColor& rhs) { return !gcolor_equal(lhs, rhs); }
 
-namespace {
-  GOwnedBitmap digitsBitmap;
-  GOwnedBitmap digitBitmaps[10];
-  GOwnedBitmap frameBitmap;
+namespace bitmaps {
+  namespace {
+    GOwnedBitmap digitsBitmap;
+    GOwnedBitmap digitBitmaps[10];
+    GOwnedBitmap frameBitmap;
 
-  GColor* digitColor;
-  GColor* frameColor;
+    GColor* digitColor;
+    GColor* frameColor;
 
 
-  int get_palette_size(GBitmapBase& bitmap){
-    switch (bitmap.GetFormat()) {
-      case GBitmapFormat1BitPalette: return 2;
-      case GBitmapFormat2BitPalette: return 4;
-      case GBitmapFormat4BitPalette: return 16;
-      default: return 0;
-    }
-  }
-
-  GColor* find_color(GBitmapBase& bitmap, GColor color) {
-    GColor* palette = bitmap.GetPalette();
-    if (palette == nullptr) {
-      ERROR("Palette is null");
-      return nullptr;
-    }
-
-    int paletteSize = get_palette_size(bitmap);
-    if (paletteSize == 0) {
-      ERROR("Expected GBitmapFormat[124]BitPalette, got: %d", digitsBitmap.GetFormat());
-      return nullptr;
-    }
-    for (int i = 0; i < paletteSize; i++) {
-      if (palette[i] == color) {
-        DEBUG("Found color 0x%02X at index %d", color, i);
-        return &palette[i];
+    int GetPaletteSize(GBitmapBase& bitmap){
+      switch (bitmap.GetFormat()) {
+        case GBitmapFormat1BitPalette: return 2;
+        case GBitmapFormat2BitPalette: return 4;
+        case GBitmapFormat4BitPalette: return 16;
+        default: return 0;
       }
     }
-    ERROR("Color 0x%02X not found in the palette", color);
-    return nullptr;
-  }
-}
 
-void init_bitmaps() {
-  digitsBitmap = GOwnedBitmap::CreateWithResource(RESOURCE_ID_DIGITS);
-  auto size = digitsBitmap.GetBounds().size;
-  uint16_t w = size.w / 10;
-  uint16_t h = size.h;
-  for (int i = 0; i < 10; i++) {
-    digitBitmaps[i] = GOwnedBitmap::CreateSubBitmap(digitsBitmap, Pebble::GRect(i * w, 0, w, h));
+    GColor* FindColor(GBitmapBase& bitmap, GColor color) {
+      GColor* palette = bitmap.GetPalette();
+      if (palette == nullptr) {
+        ERROR("Palette is null");
+        return nullptr;
+      }
+
+      int paletteSize = GetPaletteSize(bitmap);
+      if (paletteSize == 0) {
+        ERROR("Expected GBitmapFormat[124]BitPalette, got: %d", digitsBitmap.GetFormat());
+        return nullptr;
+      }
+      for (int i = 0; i < paletteSize; i++) {
+        if (palette[i] == color) {
+          DEBUG("Found color 0x%02X at index %d", color, i);
+          return &palette[i];
+        }
+      }
+      ERROR("Color 0x%02X not found in the palette", color);
+      return nullptr;
+    }
   }
 
-  frameBitmap = GOwnedBitmap::CreateWithResource(RESOURCE_ID_FRAME);
+  void Init() {
+    digitsBitmap = GOwnedBitmap::CreateWithResource(RESOURCE_ID_DIGITS);
+    auto size = digitsBitmap.GetBounds().size;
+    uint16_t w = size.w / 10;
+    uint16_t h = size.h;
+    for (int i = 0; i < 10; i++) {
+      digitBitmaps[i] = GOwnedBitmap::CreateSubBitmap(digitsBitmap, Pebble::GRect(i * w, 0, w, h));
+    }
 
-  digitColor = find_color(digitsBitmap, GColorBlack);
-  frameColor = find_color(frameBitmap, GColorBlack);
-}
+    frameBitmap = GOwnedBitmap::CreateWithResource(RESOURCE_ID_FRAME);
 
-void deinit_bitmaps() {
-  for (int i = 0; i < 10; i++) {
-    digitBitmaps[i] = GOwnedBitmap();
+    digitColor = FindColor(digitsBitmap, GColorBlack);
+    frameColor = FindColor(frameBitmap, GColorBlack);
   }
-  digitsBitmap = GOwnedBitmap();
-  frameBitmap = GOwnedBitmap();
-  digitColor = nullptr;
-  frameColor = nullptr;
-}
 
-GBitmapBase& get_digit_bitmap(uint16_t digit) {return digitBitmaps[digit];}
-GBitmapBase& get_frame_bitmap() {return frameBitmap;}
-
-
-void set_digit_color(GColor color) {
-  if (digitColor != nullptr) *digitColor = color;
-}
-void set_frame_color(GColor color) {
-  if (frameColor != nullptr) *frameColor = color;
-}
-
-void print_palette(GBitmapBase& bitmap) {
-  int paletteSize = get_palette_size(bitmap);
-  if (paletteSize == 0) {
-    ERROR("Expected GBitmapFormat[124]BitPalette, got: %d", digitsBitmap.GetFormat());
-    return;
+  void DeInit() {
+    for (int i = 0; i < 10; i++) {
+      digitBitmaps[i] = GOwnedBitmap();
+    }
+    digitsBitmap = GOwnedBitmap();
+    frameBitmap = GOwnedBitmap();
+    digitColor = nullptr;
+    frameColor = nullptr;
   }
-  DEBUG("%d colors:", paletteSize);
-  GColor8* palette = bitmap.GetPalette();
-  for (int i = 0; i < paletteSize; i++) {
-    DEBUG("* 0x%02X = argb(%d,%d,%d,%d)", palette[i].argb, palette[i].a, palette[i].r, palette[i].g, palette[i].b);
+
+  GBitmapBase& GetDigitBitmap(uint16_t digit) {return digitBitmaps[digit];}
+  GBitmapBase& GetFrameBitmap() {return frameBitmap;}
+
+
+  void SetDigitColor(GColor color) {
+    if (digitColor != nullptr) *digitColor = color;
+  }
+  void SetFrameColor(GColor color) {
+    if (frameColor != nullptr) *frameColor = color;
+  }
+
+  void PrintPalette(GBitmapBase& bitmap) {
+    int paletteSize = GetPaletteSize(bitmap);
+    if (paletteSize == 0) {
+      ERROR("Expected GBitmapFormat[124]BitPalette, got: %d", digitsBitmap.GetFormat());
+      return;
+    }
+    DEBUG("%d colors:", paletteSize);
+    GColor* palette = bitmap.GetPalette();
+    for (int i = 0; i < paletteSize; i++) {
+      DEBUG("* 0x%02X = argb(%d,%d,%d,%d)", palette[i].argb, palette[i].a, palette[i].r, palette[i].g, palette[i].b);
+    }
   }
 }
\ No newline at end of file
diff --git a/src/c/bitmaps.hpp b/src/c/bitmaps.hpp
index a4a7c31..c41ed74 100644
--- a/src/c/bitmaps.hpp
+++ b/src/c/bitmaps.hpp
@@ -2,10 +2,12 @@
 
 #include <pebble-cpp/pebble.hpp>
 
-void init_bitmaps();
-void deinit_bitmaps();
-Pebble::GBitmapBase& get_digit_bitmap(uint16_t digit);
-Pebble::GBitmapBase& get_frame_bitmap();
-void set_digit_color(GColor color);
-void set_frame_color(GColor color);
-void print_palette(Pebble::GBitmapBase& bitmap);
\ No newline at end of file
+namespace bitmaps {
+  void Init();
+  void DeInit();
+  Pebble::GBitmapBase& GetDigitBitmap(uint16_t digit);
+  Pebble::GBitmapBase& GetFrameBitmap();
+  void SetDigitColor(GColor color);
+  void SetFrameColor(GColor color);
+  void PrintPalette(Pebble::GBitmapBase& bitmap);
+}
\ No newline at end of file
diff --git a/src/c/digit_layer.cpp b/src/c/digit_layer.cpp
index bc2af76..b8addca 100644
--- a/src/c/digit_layer.cpp
+++ b/src/c/digit_layer.cpp
@@ -1,12 +1,12 @@
 #include "digit_layer.hpp"
-#include "bitmaps.hpp"
 #include <@rebble/sdk-c-utils/macros.h>
+#include "bitmaps.hpp"
 
 using namespace Pebble;
 
 namespace {
   void draw_digit(const Pebble::GContext& ctx, const Pebble::GRect& bounds, const uint16_t digit) {
-    Pebble::GBitmapBase& bitmap = get_digit_bitmap(digit);
+    Pebble::GBitmapBase& bitmap = bitmaps::GetDigitBitmap(digit);
     auto rect = bitmap.GetBounds();
     rect.Align(bounds, GAlignCenter, false);
     ctx.DrawBitmapInRect(bitmap, rect);
diff --git a/src/c/cryptic_clock.cpp b/src/c/main.cpp
similarity index 74%
rename from src/c/cryptic_clock.cpp
rename to src/c/main.cpp
index 9e5ce68..e55c761 100644
--- a/src/c/cryptic_clock.cpp
+++ b/src/c/main.cpp
@@ -3,6 +3,7 @@
 #include "pebble_bitmap_layer.hpp"
 #include "digit_layer.hpp"
 #include "bitmaps.hpp"
+#include "settings.hpp"
 
 using namespace Pebble;
 
@@ -13,8 +14,6 @@ class MainWindow : public AppWindow, public TickTimer {
   Pebble::BitmapLayer frameLayer;
 protected:
   void OnLoad() {
-    init_bitmaps();
-
     auto bounds = this->GetBounds();
     int16_t w2 = bounds.size.w / 2;
     int16_t h = bounds.size.h;
@@ -32,12 +31,7 @@ protected:
       this->AddChild(this->digitLayers[i]);
     }
 
-    // print_palette(get_digit_bitmap(0));
-    // print_palette(get_frame_bitmap());
-    // set_frame_color(GColorPictonBlue);
-    // print_palette(get_digit_bitmap(0));
-    // print_palette(get_frame_bitmap());
-    this->frameLayer.SetBitmap(get_frame_bitmap());
+    this->frameLayer.SetBitmap(bitmaps::GetFrameBitmap());
     this->frameLayer.SetFrame(bounds);
     this->frameLayer.SetCompositingMode(GCompOpSet);
     this->AddChild(this->frameLayer);
@@ -48,14 +42,6 @@ protected:
     TickTimerStart(MINUTE_UNIT);
 #endif
     UpdateTime(false);
-
-    this->SetBackgroundColor(GColorBlack);
-    set_digit_color(GColorVividCerulean);
-    set_frame_color(GColorPictonBlue);
-  }
-
-  void OnUnload() {
-    deinit_bitmaps();
   }
 
   void UpdateTime(bool animate=true) {
@@ -78,9 +64,35 @@ protected:
   }
 };
 
+namespace {
+  void ApplySettings() {
+
+    Pebble::Window window = window_stack_get_top_window();
+    window.SetBackgroundColor(settings::GetBackgroundColor());
+    window.MarkDirty();
+
+    bitmaps::SetDigitColor(settings::GetDigitColor());
+    bitmaps::SetFrameColor(settings::GetFrameColor());
+  }
+
+  void HandleMsg(DictionaryIterator *iter, void *context) {
+    settings::HandleMsg(iter);
+    ApplySettings();
+  }
+}
+
 MAIN {
+  bitmaps::Init();
+  settings::Load();
+  app_message_register_inbox_received(HandleMsg);
+  app_message_open(64, 64); // inbox, outbox
+
   MainWindow window;
   window.StackPush(true);
+  ApplySettings();
+
   app_event_loop();
+
+  bitmaps::DeInit();
   return 0;
 }
\ No newline at end of file
diff --git a/src/c/settings.cpp b/src/c/settings.cpp
new file mode 100644
index 0000000..08eabb1
--- /dev/null
+++ b/src/c/settings.cpp
@@ -0,0 +1,44 @@
+#include "settings.hpp"
+
+// Built-in GColorFromRGBA doesn't seem to work in C++11 :(
+#undef GColorFromRGBA
+GColor8 GColorFromRGBA(uint8_t red, uint8_t green, uint8_t blue, uint8_t alpha) {
+  GColor8 res;
+  res.a = alpha >> 6;
+  res.r = red >> 6;
+  res.g = green >> 6;
+  res.b = blue >> 6;
+  return res;
+}
+
+namespace settings {
+  namespace {
+    GColor backgroundColor = GColorWhite;
+    GColor digitColor = GColorBlack;
+    GColor frameColor = GColorBlack;
+  }
+
+  void Save() {
+    persist_write_data(MESSAGE_KEY_BACKGROUND_COLOR, &backgroundColor, sizeof(GColor));
+    persist_write_data(MESSAGE_KEY_DIGIT_COLOR, &digitColor, sizeof(GColor));
+    persist_write_data(MESSAGE_KEY_FRAME_COLOR, &frameColor, sizeof(GColor));
+  }
+
+  void Load() {
+    persist_read_data(MESSAGE_KEY_BACKGROUND_COLOR, &backgroundColor, sizeof(GColor));
+    persist_read_data(MESSAGE_KEY_DIGIT_COLOR, &digitColor, sizeof(GColor));
+    persist_read_data(MESSAGE_KEY_FRAME_COLOR, &frameColor, sizeof(GColor));
+  }
+
+  void HandleMsg(DictionaryIterator *iter) {
+
+    if (auto tuple = dict_find(iter, MESSAGE_KEY_BACKGROUND_COLOR)) backgroundColor = GColorFromHEX(tuple->value->int32);
+    if (auto tuple = dict_find(iter, MESSAGE_KEY_DIGIT_COLOR)) digitColor = GColorFromHEX(tuple->value->int32);
+    if (auto tuple = dict_find(iter, MESSAGE_KEY_FRAME_COLOR)) frameColor = GColorFromHEX(tuple->value->int32);
+    Save();
+  }
+
+  GColor GetBackgroundColor() {return backgroundColor; }
+  GColor GetDigitColor() {return digitColor; }
+  GColor GetFrameColor() {return frameColor; }
+}
\ No newline at end of file
diff --git a/src/c/settings.hpp b/src/c/settings.hpp
new file mode 100644
index 0000000..3b62e9c
--- /dev/null
+++ b/src/c/settings.hpp
@@ -0,0 +1,12 @@
+#pragma once
+
+#include <pebble-cpp/pebble.hpp>
+
+namespace settings {
+  void Save();
+  void Load();
+  void HandleMsg(DictionaryIterator *iter);
+  GColor GetBackgroundColor();
+  GColor GetDigitColor();
+  GColor GetFrameColor();
+}
diff --git a/src/pkjs/config.js b/src/pkjs/config.js
index e26008f..0a5a879 100644
--- a/src/pkjs/config.js
+++ b/src/pkjs/config.js
@@ -1,10 +1,36 @@
 module.exports = [
   { 
-    "type": "heading", 
-    "defaultValue": "Example Header Item" 
-  }, 
-  { 
-    "type": "text", 
-    "defaultValue": "Example text item." 
-  }
+    type: "section", 
+    items: [ 
+      {
+        type: "heading", 
+        defaultValue: "Colors",
+      },
+      {
+        label: "Background Color",
+        messageKey: "BACKGROUND_COLOR",
+        type: "color",
+        defaultValue: "#FFFFFF",
+        allowGray: true,
+      },
+      {
+        label: "Digit Color",
+        messageKey: "DIGIT_COLOR",
+        type: "color",
+        defaultValue: "#000000",
+        allowGray: true,
+      },
+      {
+        label: "Frame Color",
+        messageKey: "FRAME_COLOR",
+        type: "color",
+        defaultValue: "#00000",
+        allowGray: true,
+      },
+    ]
+  },
+  {
+    type: "submit",
+    defaultValue: "Save Settings",
+  },
 ];
\ No newline at end of file
diff --git a/src/pkjs/index.js b/src/pkjs/index.js
index df6395a..9a8e20b 100644
--- a/src/pkjs/index.js
+++ b/src/pkjs/index.js
@@ -1,4 +1,3 @@
 var Clay = require('pebble-clay');
 var clayConfig = require('./config');
-var clay = new Clay(clayConfig);
-console.log('Loaded clay!');
\ No newline at end of file
+var clay = new Clay(clayConfig);
\ No newline at end of file