diff --git a/Zframework/init.lua b/Zframework/init.lua
index 1f3d9630..877dc575 100644
--- a/Zframework/init.lua
+++ b/Zframework/init.lua
@@ -40,6 +40,7 @@ LANG=	require"Zframework.languages"
 TASK=	require"Zframework.task"
 FILE=	require"Zframework.file"
 PROFILE=require"Zframework.profile"
+THEME=	require"Zframework.theme"
 
 local ms,kb=love.mouse,love.keyboard
 
diff --git a/Zframework/theme.lua b/Zframework/theme.lua
new file mode 100644
index 00000000..eb97578b
--- /dev/null
+++ b/Zframework/theme.lua
@@ -0,0 +1,74 @@
+local THEME={
+	cur=false,--Current theme
+}
+local themeColor={
+	xmas={COLOR.red,COLOR.white,COLOR.green},
+	sprfes={COLOR.red,COLOR.orange,COLOR.yellow},
+}
+
+function THEME.calculate(Y,M,D)
+	if not Y then Y,M,D=os.date"%Y",os.date"%m",os.date"%d"end
+	--Festival calculate within one statement
+	return
+		--Christmas
+		M=="12"and math.abs(D-25)<4 and
+		"xmas"or
+
+		--Spring festival
+		M<"03"and math.abs((({
+			--Festival days. Jan 26=26, Feb 1=32, etc.
+			24,43,32,22,40,29,49,38,26,45,
+			34,23,41,31,50,39,28,47,36,25,
+			43,32,22,41,29,48,37,26,44,34,
+			23,42,31,50,39,28,46,35,24,43,
+			32,22,41,30,48,37,26,45,33,23,
+			42,32,50,39,28,46,35,24,43,33,
+			21,40,
+		})[Y-2000]or -26)-((M-1)*31+D))<6 and
+		"sprfes"or
+
+		--Z day (Feb./Mar./Apr./May./June 26)
+		math.abs(M-4)<=2 and D+0==26 and
+		"zday"or
+
+		"classic"
+end
+
+function THEME.set(theme)
+	if theme=="classic"then
+		BG.setDefault("space")
+		BGM.setDefault("blank")
+	elseif theme=="xmas"then
+		BG.setDefault("snow")
+		BGM.setDefault("mXmas")
+		LOG.print("==============",COLOR.red)
+		LOG.print("Merry Christmas!",COLOR.white)
+		LOG.print("==============",COLOR.red)
+	elseif theme=="sprfes"then
+		BG.setDefault("firework")
+		BGM.setDefault("spring festival")
+		LOG.print(" ★☆☆★",COLOR.red)
+		LOG.print("新年快乐!",COLOR.white)
+		LOG.print(" ★☆☆★",COLOR.red)
+	elseif theme=="zday"then
+		BG.setDefault("lanterns")
+		BGM.setDefault("overzero")
+	else
+		return
+	end
+	THEME.cur=theme
+	BG.set()
+	BGM.play()
+	return true
+end
+
+function THEME.getThemeColor(theme)
+	if not theme then theme=THEME.cur end
+	return themeColor[theme]
+end
+
+function THEME.fresh()
+	THEME.set(THEME.calculate(os.date"%Y",os.date"%m",os.date"%d"))
+end
+
+return THEME
\ No newline at end of file
diff --git a/Zframework/widget.lua b/Zframework/widget.lua
index ab5169cb..7f30d0b5 100644
--- a/Zframework/widget.lua
+++ b/Zframework/widget.lua
@@ -974,19 +974,13 @@ function WIDGET.set(list)
 		for i=1,#list do
 			list[i]:reset()
 		end
-		if THEME and SCN.cur~="custom_field"then
-			local c1,c2,c3
-			if THEME=="xMas"then
-				c1,c2,c3=COLOR.red,COLOR.white,COLOR.green
-			elseif THEME=="sprFes"then
-				c1,c2,c3=COLOR.red,COLOR.orange,COLOR.yellow
-			else
-				return
-			end
+		if SCN.cur~="custom_field"then
+			local colorList=THEME.getThemeColor()
+			if not colorList then return end
 			local rnd=math.random
 			for _,W in next,list do
 				if W.color and not W.fText then
-					W.color=rnd()<.3 and c1 or rnd()<.5 and c2 or c3
+					W.color=colorList[rnd(#colorList)]
 				end
 			end
 		end
diff --git a/main.lua b/main.lua
index 3d55620e..605a09a2 100644
--- a/main.lua
+++ b/main.lua
@@ -29,32 +29,6 @@ WSCONN=false
 LATEST_VERSION=false
 ERRDATA={}
 
---Festival check within one statement
-THEME=(
-	--Christmas
-	os.date"%m"=="12"and math.abs(os.date"%d"-25)<4 and
-	"Xmas"or
-
-	--Spring festival
-	os.date"%m"<"03"and math.abs((({
-		--Festival days. Jan 26=26, Feb 1=32, etc.
-		24,43,32,22,40,29,49,38,26,45,
-		34,23,41,31,50,39,28,47,36,25,
-		43,32,22,41,29,48,37,26,44,34,
-		23,42,31,50,39,28,46,35,24,43,
-		32,22,41,30,48,37,26,45,33,23,
-		42,32,50,39,28,46,35,24,43,33,
-		21,40,
-	})[os.date"%Y"-2000]or -26)-((os.date"%m"-1)*31+os.date"%d"))<6 and
-	"sprFes"or
-
-	--Z day (Feb./Mar./Apr./May./June 26)
-	math.abs(os.date"%m"-4)<=2 and os.date"%d"+0==26 and
-	"zDay"or
-
-	false
-)
-
 --System setting
 math.randomseed(os.time()*626)
 love.keyboard.setKeyRepeat(true)
@@ -406,18 +380,4 @@ do
 		STAT.version=VERSION_CODE
 		FILE.save(STAT,"conf/data","q")
 	end
-end
-
-if THEME=="Xmas"then
-	BG.setDefault("snow")
-	BGM.setDefault("mXmas")
-elseif THEME=="sprFes"then
-	BG.setDefault("firework")
-	BGM.setDefault("spring festival")
-elseif THEME=="zDay"then
-	BG.setDefault("lanterns")
-	BGM.setDefault("overzero")
-else
-	BG.setDefault("space")
-	BGM.setDefault("blank")
 end
\ No newline at end of file
diff --git a/parts/scenes/app_cmd.lua b/parts/scenes/app_cmd.lua
index fae885f9..4f93008a 100644
--- a/parts/scenes/app_cmd.lua
+++ b/parts/scenes/app_cmd.lua
@@ -470,30 +470,13 @@ function commands.setbg(name)
 	end
 end
 function commands.theme(name)
-	if name=="classic"then
-		THEME=false
-		BG.setDefault("space")
-		BGM.setDefault("blank")
-		BGM.play()
-	elseif name=="xmas"then
-		THEME="xMas"
-		BG.setDefault("snow")
-		BGM.setDefault("mXmas")
-		BGM.play()
-	elseif name=="sprfes"then
-		THEME="sprFes"
-		BG.setDefault("firework")
-		BGM.setDefault("spring festival")
-		BGM.play()
-	elseif name=="zday"then
-		THEME="zDay"
-		BG.setDefault("lanterns")
-		BGM.setDefault("overzero")
-		BGM.play()
-	else
-		if name~=""then
+	if name~=""then
+		if THEME.set(name)then
+			log("Theme set to: "..name)
+		else
 			log("No theme called "..name)
 		end
+	else
 		log{C.water,"Usage: theme [themeName]"}
 	end
 end
diff --git a/parts/scenes/intro.lua b/parts/scenes/intro.lua
index 52f5ddbf..94be7b00 100644
--- a/parts/scenes/intro.lua
+++ b/parts/scenes/intro.lua
@@ -8,8 +8,6 @@ local scene={}
 local t1,t2,animateType
 
 function scene.sceneInit()
-	BG.set()
-	BGM.play()
 	t1,t2=0,0--Timer
 	animateType={rnd(5),rnd(5),rnd(5),rnd(5),rnd(5),rnd(5),rnd(5),rnd(5)}--Random animation type
 end
diff --git a/parts/scenes/load.lua b/parts/scenes/load.lua
index d275463d..8b24e32a 100644
--- a/parts/scenes/load.lua
+++ b/parts/scenes/load.lua
@@ -182,15 +182,7 @@ local loadingThread=coroutine.create(function()
 			authToken=USER.authToken,
 		})
 	]]
-	if THEME=="Xmas"then
-		LOG.print("==============",COLOR.red)
-		LOG.print("Merry Christmas!",COLOR.white)
-		LOG.print("==============",COLOR.red)
-	elseif THEME=="sprFes"then
-		LOG.print(" ★☆☆★",COLOR.red)
-		LOG.print("新年快乐!",COLOR.white)
-		LOG.print(" ★☆☆★",COLOR.red)
-	end
+	THEME.fresh()
 	while true do
 		if math.random()<.126 then
 			upFloor()