diff --git a/Include/Color.h b/Include/Color.h
index c440796..d403acb 100644
--- a/Include/Color.h
+++ b/Include/Color.h
@@ -15,4 +15,4 @@ COLORREF Grad(COLORREF c0, COLORREF c1, double t);
 DWORD ColorAt(UINT x, UINT y, UINT width, UINT height);
 
 // width*heightのウィンドウにおける点(x,y)の漸化式適用回数を返す関数
-int Calc(UINT x, UINT y, UINT width, UINT height);
\ No newline at end of file
+INT Calc(UINT x, UINT y, UINT width, UINT height);
\ No newline at end of file
diff --git a/Include/Graph.h b/Include/Graph.h
index d8fd9ec..f468fd6 100644
--- a/Include/Graph.h
+++ b/Include/Graph.h
@@ -14,7 +14,8 @@ struct GRAPH{
 	double size;
 	double scale;
 	UINT limit;
-	int color_mode;
+	int inner_color_mode;
+	int outer_color_mode;
 	COLORREF color0;// 収束部
 	COLORREF color1;// 発散部1
 	COLORREF color2;// 発散部2
diff --git a/Include/Resource.h b/Include/Resource.h
index eb63efa..1da565d 100644
--- a/Include/Resource.h
+++ b/Include/Resource.h
@@ -68,6 +68,13 @@
 #define IDM_INITAREA   				5510//
 #define IDM_INITCOLOR  				5520//
 
+#define GCM_I_SOLID					0
+#define GCM_I_GRAD					1
+#define GCM_O_TEMPLATE0				0
+#define GCM_O_TEMPLATE1				1
+#define GCM_O_TEMPLATE2				2
+#define GCM_O_CUSTOM				3
+
 #define IDI_MANDELBROTSET			107
 #define IDI_SMALL					108
 #define IDC_MANDELBROTSET			109
diff --git a/Source/Color.c b/Source/Color.c
index 82ea680..3a7aad2 100644
--- a/Source/Color.c
+++ b/Source/Color.c
@@ -1,5 +1,7 @@
 #include "Color.h"
 #include "Graph.h"
+#define _USE_MATH_DEFINES
+#include <math.h>
 
 extern struct GRAPH graph;
 
@@ -54,33 +56,51 @@ DWORD ColorAt(UINT x, UINT y, UINT width, UINT height)
 {
     //if ((x - width / 2) * (x - width / 2) + (y - height / 2) * (y - height / 2) < 50)return 0x00ff0000;
     int t = Calc(x, y, width, height);
-    if (t < 0) return (DWORD)graph.color0;
-    //return (DWORD)((t * 4 % 128 + 64) * 0x00010100);
-    //return (DWORD)HSV(t%128/128.0, 0.7, 1.0);
-    switch (graph.color_mode)
-    {
-    case 3:
-        return (DWORD)Grad(graph.color1, graph.color2, (1.0 * t / graph.limit - graph.color_stop0) / (graph.color_stop1 - graph.color_stop0));
-    default:
-        return (DWORD)HSV(t / 40.0, 1 - graph.color_mode / 3.0, 1);
+    if (t < 0) {
+        switch (graph.inner_color_mode) {
+        case GCM_I_SOLID:
+            return (DWORD)graph.color0;
+        case GCM_I_GRAD:
+            return (DWORD)Grad(graph.color1, graph.color2, (1.0 * t / graph.limit - graph.color_stop0) / (graph.color_stop1 - graph.color_stop0));
+        }
+    }
+    else {
+        //return (DWORD)((t * 4 % 128 + 64) * 0x00010100);
+        //return (DWORD)HSV(t%128/128.0, 0.7, 1.0);
+        switch (graph.outer_color_mode)
+        {
+        case GCM_O_CUSTOM:
+            return (DWORD)Grad(graph.color1, graph.color2, (1.0 * t / graph.limit - graph.color_stop0) / (graph.color_stop1 - graph.color_stop0));
+        default:
+            return (DWORD)HSV(t / 40.0, 1 - graph.outer_color_mode / 3.0, 1);
+        }
+        //return (x + y) % 0x01000000;
+        //return (0x01000000 - 1) * (x + y) / (width + height);
     }
-    //return (x + y) % 0x01000000;
-    //return (0x01000000 - 1) * (x + y) / (width + height);
 }
 
-int Calc(UINT x, UINT y, UINT width, UINT height)
+INT Calc(UINT x, UINT y, UINT width, UINT height)
 {
     UINT m = min(width, height);
     int i;
-    double zr, zi, tmp, cr, ci;
+    double zr, zi, tmp, cr, ci;// , tr, ti;
     zr = zi = 0;
+    //tr = ti = 0;
     cr = graph.x0 + (x - (double)width / 2) / m * graph.size;
     ci = graph.y0 + (y - (double)height / 2) / m * graph.size;
     for (i = 0; i <= (int)graph.limit; i++) {
         if (zr * zr + zi * zi > 4) return i;
+        //tr = zr; ti = zi;
         tmp = zr * zr - zi * zi + cr;
         zi = 2 * zr * zi + ci;
         zr = tmp;
+        //tr = zr - tr;
+        //ti = zi - ti;
     }
     return -1;
-}
\ No newline at end of file
+    //return (INT)(fabs(atan2(zi, zr)) * graph.limit / M_PI);
+    //return (INT)(fabs(atan2(ti, tr)) * graph.limit / M_PI);
+    //return (INT)(sqrt(zi * zi + zr * zr) * graph.limit);
+}
+
+
diff --git a/Source/Graph.c b/Source/Graph.c
index 5f13fdc..b6c7692 100644
--- a/Source/Graph.c
+++ b/Source/Graph.c
@@ -19,7 +19,8 @@ void InitGraph(UINT flg)
 	if (flg & GRAPH_INIT_OTHER) {
 		graph.scale = 1.5;
 		graph.limit = 500;
-		graph.color_mode = 3;// 3: カスタマイズ
+		graph.inner_color_mode = GCM_I_SOLID;//GCM_I_GRAD;
+		graph.outer_color_mode = GCM_O_CUSTOM;
 	}
 }
 
@@ -35,14 +36,15 @@ void CopyGraph(struct GRAPH* gdest, struct GRAPH* gsrc)
 	gdest->color_stop1 = gsrc->color_stop1;
 	gdest->scale = gsrc->scale;
 	gdest->limit = gsrc->limit;
-	gdest->color_mode = gsrc->color_mode;
+	gdest->inner_color_mode = gsrc->inner_color_mode;
+	gdest->outer_color_mode = gsrc->outer_color_mode;
 }
 
 BOOL SetGraphData(struct GRAPH *gdest, LPCWSTR input)
 {
 	// !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!フォーマットに適合する文字列か判定!!!!!!!!!!!!!!!!!!!!!!!
 	int i = 0, j = 0, k = 0;
-	WCHAR data[10][50] = { {0} };
+	WCHAR data[11][50] = { {0} };
 	while (input[i + j]) {
 		if (input[i + j] == L'/') {
 			k += 1;
@@ -54,10 +56,10 @@ BOOL SetGraphData(struct GRAPH *gdest, LPCWSTR input)
 			i += 1;
 		}
 	}
-	if (k != 9)return FALSE;
+	if (k != 10)return FALSE;
 	
 	
-	WCHAR names[10][19] = {
+	WCHAR names[][19] = {
 		L"RE:",
 		L"IM:",
 		L"SIZE:",
@@ -66,12 +68,13 @@ BOOL SetGraphData(struct GRAPH *gdest, LPCWSTR input)
 		L"COLOR_C:",
 		L"COLOR_STOP_A:",
 		L"COLOR_STOP_B:",
-		L"COLOR_MODE:",
+		L"INNER_COLOR_MODE:",
+		L"OUTER_COLOR_MODE:",
 		L"LIMIT:",
 	};
 
-	INT boo[10] = { 0 };
-	for (i = 0; i < 10; i++)boo[i] = -1;
+	INT boo[11] = { 0 };
+	for (i = 0; i < 11; i++)boo[i] = -1;
 
 	typedef enum tagTYPE {
 		TYPE_DOUBLE,
@@ -80,7 +83,7 @@ BOOL SetGraphData(struct GRAPH *gdest, LPCWSTR input)
 		TYPE_UINT,
 	} TYPE;
 
-	TYPE typeof[10] = {
+	TYPE typeof[] = {
 		TYPE_DOUBLE,
 		TYPE_DOUBLE,
 		TYPE_DOUBLE,
@@ -90,9 +93,10 @@ BOOL SetGraphData(struct GRAPH *gdest, LPCWSTR input)
 		TYPE_DOUBLE,
 		TYPE_DOUBLE,
 		TYPE_INT,
+		TYPE_INT,
 		TYPE_UINT,
 	};
-	void* pointers[10] = {
+	void* pointers[] = {
 		&(gdest->x0),
 		&(gdest->y0),
 		&(gdest->size),
@@ -101,13 +105,14 @@ BOOL SetGraphData(struct GRAPH *gdest, LPCWSTR input)
 		&(gdest->color2),
 		&(gdest->color_stop0),
 		&(gdest->color_stop1),
-		&(gdest->color_mode),
+		&(gdest->inner_color_mode),
+		&(gdest->outer_color_mode),
 		//&(gdest->scale),
 		&(gdest->limit),
 	};
 
 	for (i = 0; i <= k; i++) {
-		for (j = 0; j < 10; j++) {
+		for (j = 0; j <= k; j++) {
 			if (0 <= boo[j])continue;
 			if (wcsncmp(names[j], data[i], lstrlen(names[j])) == 0) {
 				boo[j] = i;
@@ -115,12 +120,12 @@ BOOL SetGraphData(struct GRAPH *gdest, LPCWSTR input)
 		}
 	}
 
-	for (j = 0; j < 10; j++) {
+	for (j = 0; j < k; j++) {
 		if (boo[j] < 0)return FALSE;
 	}
 
 	/* 以下，適切な入力があったときのみ実行 */
-	for (j = 0; j < 10; j++) {
+	for (j = 0; j <= 10; j++) {
 		switch (typeof[j]) {
 		case TYPE_DOUBLE:
 			swscanf_s(data[boo[j]] + lstrlen(names[j]), L"%lf", (double*)pointers[j]);
@@ -152,10 +157,10 @@ void GetGraphData(LPWSTR buf, size_t bufSize)
 {
 	swprintf(
 		buf, bufSize,
-		L"RE:%29.20Lf/IM:%29.20Lf/SIZE:%29.20Lf/COLOR_A:%06lx/COLOR_B:%06lx/COLOR_C:%06lx/COLOR_STOP_A:%4.2Lf/COLOR_STOP_B:%4.2Lf/COLOR_MODE:%d/LIMIT:%u",
+		L"RE:%29.20Lf/IM:%29.20Lf/SIZE:%29.20Lf/COLOR_A:%06lx/COLOR_B:%06lx/COLOR_C:%06lx/COLOR_STOP_A:%4.2Lf/COLOR_STOP_B:%4.2Lf/INNER_COLOR_MODE:%d/OUTER_COLOR_MODE:%d/LIMIT:%u",
 		graph.x0, graph.y0, graph.size,
 		graph.color0, graph.color1, graph.color2, graph.color_stop0, graph.color_stop1,
-		graph.color_mode, /*graph.scale, */graph.limit
+		graph.inner_color_mode, graph.outer_color_mode, /*graph.scale, */graph.limit
 	);
 }
 
diff --git a/Source/Menus.c b/Source/Menus.c
index 38afd2a..f250735 100644
--- a/Source/Menus.c
+++ b/Source/Menus.c
@@ -202,7 +202,7 @@ INT_PTR CALLBACK MenuSetColor(HWND hDlg, UINT message, WPARAM wParam, LPARAM lPa
         cc[1].rgbResult = InvertColor(graph_cpy.color1);
         cc[2].rgbResult = InvertColor(graph_cpy.color2);
 
-        HWND hRadio = GetDlgItem(hDlg, IDC_SCRADIO1 + graph_cpy.color_mode);
+        HWND hRadio = GetDlgItem(hDlg, IDC_SCRADIO1 + graph_cpy.outer_color_mode);
         SendMessage(hRadio, BM_SETCHECK, 1, 0);
         SendDlgItemMessage(hDlg, IDC_SCSLIDER0, TBM_SETPOS, TRUE, (LPARAM)(graph_cpy.color_stop0 * 100));
         SendDlgItemMessage(hDlg, IDC_SCSLIDER1, TBM_SETPOS, TRUE, (LPARAM)(graph_cpy.color_stop1 * 100));
@@ -294,7 +294,7 @@ INT_PTR CALLBACK MenuSetColor(HWND hDlg, UINT message, WPARAM wParam, LPARAM lPa
         case IDC_SCRADIO3:
         case IDC_SCRADIO4:
         {
-            graph_cpy.color_mode = LOWORD(wParam) - IDC_SCRADIO1;
+            graph_cpy.outer_color_mode = LOWORD(wParam) - IDC_SCRADIO1;
             break;
         }