diff --git a/README.md b/README.md
index 0540da9..d5eeb0b 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@ Refer to [https://dwm.suckless.org/](https://dwm.suckless.org/) for details on t
 
 ### Changelog:
 
-2019-09-09 - Added deck, fibonacci (dwindle and spiral), gridmode, gapplessgrid, horizgrid and nrowgrid layouts
+2019-09-09 - Added deck, fibonacci (dwindle and spiral), gridmode, gapplessgrid, horizgrid, nrowgrid and centeredmaster layouts
 
 2019-09-08 - Added cfacts and vanitygaps patches, added bstack and bstackhoriz layouts
 
@@ -115,6 +115,12 @@ Refer to [https://dwm.suckless.org/](https://dwm.suckless.org/) for details on t
    - [bstackhoriz](https://dwm.suckless.org/patches/bottomstack/)
       - bottomstack horizontal layout
 
+   - [centeredmaster](https://dwm.suckless.org/patches/centeredmaster/)
+      - centeredmaster layout
+
+   - [centeredfloatingmaster](https://dwm.suckless.org/patches/centeredmaster/)
+      - centeredfloatingmaster layout
+
    - [deck](https://dwm.suckless.org/patches/deck/)
       - deck layout
 
diff --git a/config.def.h b/config.def.h
index 426da8c..c5f0757 100644
--- a/config.def.h
+++ b/config.def.h
@@ -112,6 +112,12 @@ static const Layout layouts[] = {
 	#if BSTACKHORIZ_LAYOUT
 	{ "===",      bstackhoriz },
 	#endif
+	#if CENTEREDMASTER_LAYOUT
+	{ "|M|",      centeredmaster },
+	#endif
+	#if CENTEREDFLOATINGMASTER_LAYOUT
+	{ ">M>",      centeredfloatingmaster },
+	#endif
 	#if DECK_LAYOUT
 	{ "[D]",      deck },
 	#endif
diff --git a/patch/centeredfloatingmaster.c b/patch/centeredfloatingmaster.c
new file mode 100644
index 0000000..d4fcb5d
--- /dev/null
+++ b/patch/centeredfloatingmaster.c
@@ -0,0 +1,205 @@
+#if VANITYGAPS_PATCH && CFACTS_PATCH
+void
+centeredfloatingmaster(Monitor *m)
+{
+	unsigned int i, n;
+	float mivf, mfacts, sfacts;
+	int mx = 0, my = 0, mh = 0, mw = 0;
+	int sx = 0, sy = 0, sh = 0, sw = 0;
+	int oh, ov, ih, iv;
+	Client *c;
+
+	getgaps(m, &oh, &ov, &ih, &iv, &n);
+	getfacts(m, &mfacts, &sfacts);
+
+	if (n == 0)
+		return;
+
+	mivf = 0.8; // master inner vertical gap factor
+
+	sx = mx = m->wx + ov;
+	sy = my = m->wy + oh;
+	sh = mh = m->wh - 2*oh;
+	sw = mw = m->ww - 2*ov - iv*(n - 1);
+
+	if (m->nmaster && n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		if (m->ww > m->wh) {
+			mw = m->ww * m->mfact - iv*mivf*(MIN(n, m->nmaster) - 1);
+			mh = m->wh * 0.9;
+		} else {
+			mw = m->ww * 0.9 - iv*mivf*(MIN(n, m->nmaster) - 1);
+			mh = m->wh * m->mfact;
+		}
+		mx = m->wx + (m->ww - mw) / 2;
+		my = m->wy + (m->wh - mh - 2*oh) / 2;
+
+		sx = m->wx + ov;
+		sy = m->wy + oh;
+		sh = m->wh - 2*oh;
+		sw = m->ww - 2*ov - iv*(n - m->nmaster - 1);
+	}
+
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (i < m->nmaster) {
+			/* nmaster clients are stacked horizontally, in the center of the screen */
+			resize(c, mx, my, mw * (c->cfact / mfacts) - (2*c->bw), mh - (2*c->bw), 0);
+			mx += WIDTH(c) + iv*mivf;
+			focus(c);
+		} else {
+			/* stack clients are stacked horizontally */
+			resize(c, sx, sy, sw * (c->cfact / sfacts) - (2*c->bw), sh - (2*c->bw), 0);
+			sx += WIDTH(c) + iv;
+		}
+	}
+	restack(m);
+}
+#elif VANITYGAPS_PATCH
+void
+centeredfloatingmaster(Monitor *m)
+{
+	unsigned int i, n;
+	float mivf;
+	int mx = 0, my = 0, mh = 0, mw = 0;
+	int sx = 0, sy = 0, sh = 0, sw = 0;
+	int oh, ov, ih, iv;
+	Client *c;
+
+	getgaps(m, &oh, &ov, &ih, &iv, &n);
+
+	if (n == 0)
+		return;
+
+	mivf = 0.8; // master inner vertical gap factor
+
+	sx = mx = m->wx + ov;
+	sy = my = m->wy + oh;
+	sh = mh = m->wh - 2*oh;
+	sw = mw = m->ww - 2*ov - iv*(n - 1);
+
+	if (m->nmaster && n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		if (m->ww > m->wh) {
+			mw = m->ww * m->mfact - iv*mivf*(MIN(n, m->nmaster) - 1);
+			mh = m->wh * 0.9;
+		} else {
+			mw = m->ww * 0.9 - iv*mivf*(MIN(n, m->nmaster) - 1);
+			mh = m->wh * m->mfact;
+		}
+		mx = m->wx + (m->ww - mw) / 2;
+		my = m->wy + (m->wh - mh - 2*oh) / 2;
+
+		sx = m->wx + ov;
+		sy = m->wy + oh;
+		sh = m->wh - 2*oh;
+		sw = m->ww - 2*ov - iv*(n - m->nmaster - 1);
+	}
+
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (i < m->nmaster) {
+			/* nmaster clients are stacked horizontally, in the center of the screen */
+			resize(c, mx, my, mw / MIN(n, m->nmaster) - (2*c->bw), mh - (2*c->bw), 0);
+			mx += WIDTH(c) + iv*mivf;
+			focus(c);
+		} else {
+			/* stack clients are stacked horizontally */
+			resize(c, sx, sy, sw / (n - MIN(n, m->nmaster)) - (2*c->bw), sh - (2*c->bw), 0);
+			sx += WIDTH(c) + iv;
+		}
+	}
+	restack(m);
+}
+#elif CFACTS_PATCH
+void
+centeredfloatingmaster(Monitor *m)
+{
+	unsigned int i, n;
+	float mfacts, sfacts;
+	int mx = 0, my = 0, mh = 0, mw = 0;
+	int sx = 0, sy = 0, sh = 0, sw = 0;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+
+	getfacts(m, &mfacts, &sfacts);
+
+	sx = mx = m->wx;
+	sy = my = m->wy;
+	sh = mh = m->wh;
+	sw = mw = m->ww;
+
+	if (m->nmaster && n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		if (m->ww > m->wh) {
+			mw = m->ww * m->mfact;
+			mh = m->wh * 0.9;
+		} else {
+			mw = m->ww * 0.9;
+			mh = m->wh * m->mfact;
+		}
+		mx = m->wx + (m->ww - mw) / 2;
+		my = m->wy + (m->wh - mh) / 2;
+	}
+
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (i < m->nmaster) {
+			/* nmaster clients are stacked horizontally, in the center of the screen */
+			resize(c, mx, my, mw * (c->cfact / mfacts) - (2*c->bw), mh - (2*c->bw), 0);
+			mx += WIDTH(c);
+			focus(c);
+		} else {
+			/* stack clients are stacked horizontally */
+			resize(c, sx, sy, sw * (c->cfact / sfacts) - (2*c->bw), sh - (2*c->bw), 0);
+			sx += WIDTH(c);
+		}
+	}
+	restack(m);
+}
+#else
+void
+centeredfloatingmaster(Monitor *m)
+{
+	unsigned int i, n;
+	int mx = 0, my = 0, mh = 0, mw = 0;
+	int sx = 0, sy = 0, sh = 0, sw = 0;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++);
+	if (n == 0)
+		return;
+
+	sx = mx = m->wx;
+	sy = my = m->wy;
+	sh = mh = m->wh;
+	sw = mw = m->ww;
+
+	if (m->nmaster && n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		if (m->ww > m->wh) {
+			mw = m->ww * m->mfact;
+			mh = m->wh * 0.9;
+		} else {
+			mw = m->ww * 0.9;
+			mh = m->wh * m->mfact;
+		}
+		mx = m->wx + (m->ww - mw) / 2;
+		my = m->wy + (m->wh - mh) / 2;
+	}
+
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (i < m->nmaster) {
+			/* nmaster clients are stacked horizontally, in the center of the screen */
+			resize(c, mx, my, mw / MIN(n, m->nmaster) - (2*c->bw), mh - (2*c->bw), 0);
+			mx += WIDTH(c);
+			focus(c);
+		} else {
+			/* stack clients are stacked horizontally */
+			resize(c, sx, sy, sw / (n - MIN(n, m->nmaster)) - (2*c->bw), sh - (2*c->bw), 0);
+			sx += WIDTH(c);
+		}
+	}
+	restack(m);
+}
+#endif
\ No newline at end of file
diff --git a/patch/centeredfloatingmaster.h b/patch/centeredfloatingmaster.h
new file mode 100644
index 0000000..e4147b3
--- /dev/null
+++ b/patch/centeredfloatingmaster.h
@@ -0,0 +1 @@
+static void centeredfloatingmaster(Monitor *m);
\ No newline at end of file
diff --git a/patch/centeredmaster.c b/patch/centeredmaster.c
new file mode 100644
index 0000000..bac7a5b
--- /dev/null
+++ b/patch/centeredmaster.c
@@ -0,0 +1,274 @@
+#if VANITYGAPS_PATCH && CFACTS_PATCH
+void
+centeredmaster(Monitor *m)
+{
+	unsigned int i, n;
+	int mx = 0, my = 0, mh = 0, mw = 0;
+	int lx = 0, ly = 0, lw = 0, lh = 0;
+	int rx = 0, ry = 0, rw = 0, rh = 0;
+	int oh, ov, ih, iv;
+	float mfacts = 0, lfacts = 0, rfacts = 0;
+	Client *c;
+
+	getgaps(m, &oh, &ov, &ih, &iv, &n);
+	if (n == 0)
+		return;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) {
+		if (!m->nmaster || n < m->nmaster)
+			mfacts += c->cfact; // total factor of master area
+		else if ((n - m->nmaster) % 2)
+			lfacts += c->cfact; // total factor of left hand stacke area
+		else
+			rfacts += c->cfact; // total factor of right hand stack area
+	}
+
+	/* initialize areas */
+	mx = m->wx + ov;
+	my = m->wy + oh;
+	mh = m->wh - 2*oh - ih * ((!m->nmaster ? n : MIN(n, m->nmaster)) - 1);
+	mw = m->ww - 2*ov;
+	lh = m->wh - 2*oh - ih * (((n - m->nmaster) / 2) - 1);
+	rh = m->wh - 2*oh - ih * (((n - m->nmaster) / 2) - ((n - m->nmaster) % 2 ? 0 : 1));
+
+	if (m->nmaster && n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		if (n - m->nmaster > 1) {
+			/* ||<-S->|<---M--->|<-S->|| */
+			mw = (m->ww - 2*ov - 2*iv) * m->mfact;
+			lw = (m->ww - mw - 2*ov - 2*iv) / 2;
+			mx += lw + iv;
+		} else {
+			/* ||<---M--->|<-S->|| */
+			mw = (mw - iv) * m->mfact;
+			lw = m->ww - mw - iv - 2*ov;
+		}
+		rw = lw;
+		lx = m->wx + ov;
+		ly = m->wy + oh;
+		rx = mx + mw + iv;
+		ry = m->wy + oh;
+	}
+
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (!m->nmaster || i < m->nmaster) {
+			/* nmaster clients are stacked vertically, in the center of the screen */
+			resize(c, mx, my, mw - (2*c->bw), mh * (c->cfact / mfacts) - (2*c->bw), 0);
+			my += HEIGHT(c) + ih;
+		} else {
+			/* stack clients are stacked vertically */
+			if ((i - m->nmaster) % 2 ) {
+				resize(c, lx, ly, lw - (2*c->bw), lh * (c->cfact / lfacts) - (2*c->bw), 0);
+				ly += HEIGHT(c) + ih;
+			} else {
+				resize(c, rx, ry, rw - (2*c->bw), rh * (c->cfact / rfacts) - (2*c->bw), 0);
+				ry += HEIGHT(c) + ih;
+			}
+		}
+	}
+}
+#elif VANITYGAPS_PATCH
+void
+centeredmaster(Monitor *m)
+{
+	unsigned int i, n;
+	int mx = 0, my = 0, mh = 0, mw = 0;
+	int lx = 0, ly = 0, lw = 0, lh = 0;
+	int rx = 0, ry = 0, rw = 0, rh = 0;
+	int oh, ov, ih, iv;
+	int mn = 0, ln = 0, rn = 0; // number of clients in master, left and right area
+	Client *c;
+
+	getgaps(m, &oh, &ov, &ih, &iv, &n);
+
+	if (n == 0)
+		return;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) {
+		if (!m->nmaster || n < m->nmaster)
+			mn += 1;
+		else if ((n - m->nmaster) % 2)
+			ln += 1; // total factor of left hand stacke area
+		else
+			rn += 1; // total factor of right hand stack area
+	}
+
+	/* initialize areas */
+	mx = m->wx + ov;
+	my = m->wy + oh;
+	mh = m->wh - 2*oh - ih * ((!m->nmaster ? n : MIN(n, m->nmaster)) - 1);
+	mw = m->ww - 2*ov;
+	lh = m->wh - 2*oh - ih * (((n - m->nmaster) / 2) - 1);
+	rh = m->wh - 2*oh - ih * (((n - m->nmaster) / 2) - ((n - m->nmaster) % 2 ? 0 : 1));
+
+	if (m->nmaster && n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		if (n - m->nmaster > 1) {
+			/* ||<-S->|<---M--->|<-S->|| */
+			mw = (m->ww - 2*ov - 2*iv) * m->mfact;
+			lw = (m->ww - mw - 2*ov - 2*iv) / 2;
+			mx += lw + iv;
+		} else {
+			/* ||<---M--->|<-S->|| */
+			mw = (mw - iv) * m->mfact;
+			lw = m->ww - mw - iv - 2*ov;
+		}
+		rw = lw;
+		lx = m->wx + ov;
+		ly = m->wy + oh;
+		rx = mx + mw + iv;
+		ry = m->wy + oh;
+	}
+
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (!m->nmaster || i < m->nmaster) {
+			/* nmaster clients are stacked vertically, in the center of the screen */
+			resize(c, mx, my, mw - (2*c->bw), mh / mn - (2*c->bw), 0);
+			my += HEIGHT(c) + ih;
+		} else {
+			/* stack clients are stacked vertically */
+			if ((i - m->nmaster) % 2 ) {
+				resize(c, lx, ly, lw - (2*c->bw), lh / ln - (2*c->bw), 0);
+				ly += HEIGHT(c) + ih;
+			} else {
+				resize(c, rx, ry, rw - (2*c->bw), rh / rn - (2*c->bw), 0);
+				ry += HEIGHT(c) + ih;
+			}
+		}
+	}
+}
+#elif CFACTS_PATCH
+void
+centeredmaster(Monitor *m)
+{
+	unsigned int i, n;
+	int mx = 0, my = 0, mh = 0, mw = 0;
+	int lx = 0, ly = 0, lw = 0, lh = 0;
+	int rx = 0, ry = 0, rw = 0, rh = 0;
+	float mfacts = 0, lfacts = 0, rfacts = 0;
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) {
+		if (!m->nmaster || n < m->nmaster)
+			mfacts += c->cfact; // total factor of master area
+		else if ((n - m->nmaster) % 2)
+			lfacts += c->cfact; // total factor of left hand stacke area
+		else
+			rfacts += c->cfact; // total factor of right hand stack area
+	}
+
+	if (n == 0)
+		return;
+
+	/* initialize areas */
+	mx = m->wx;
+	my = m->wy;
+	mh = m->wh;
+	mw = m->ww;
+	lh = m->wh;
+	rh = m->wh;
+
+	if (m->nmaster && n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		if (n - m->nmaster > 1) {
+			/* ||<-S->|<---M--->|<-S->|| */
+			mw = m->ww * m->mfact;
+			lw = (m->ww - mw) / 2;
+			mx += lw;
+		} else {
+			/* ||<---M--->|<-S->|| */
+			mw = mw * m->mfact;
+			lw = m->ww - mw;
+		}
+		rw = lw;
+		lx = m->wx;
+		ly = m->wy;
+		rx = mx + mw;
+		ry = m->wy;
+	}
+
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (!m->nmaster || i < m->nmaster) {
+			/* nmaster clients are stacked vertically, in the center of the screen */
+			resize(c, mx, my, mw - (2*c->bw), mh * (c->cfact / mfacts) - (2*c->bw), 0);
+			my += HEIGHT(c);
+		} else {
+			/* stack clients are stacked vertically */
+			if ((i - m->nmaster) % 2 ) {
+				resize(c, lx, ly, lw - (2*c->bw), lh * (c->cfact / lfacts) - (2*c->bw), 0);
+				ly += HEIGHT(c);
+			} else {
+				resize(c, rx, ry, rw - (2*c->bw), rh * (c->cfact / rfacts) - (2*c->bw), 0);
+				ry += HEIGHT(c);
+			}
+		}
+	}
+}
+#else
+void
+centeredmaster(Monitor *m)
+{
+	unsigned int i, n;
+	int mx = 0, my = 0, mh = 0, mw = 0;
+	int lx = 0, ly = 0, lw = 0, lh = 0;
+	int rx = 0, ry = 0, rw = 0, rh = 0;
+	int mn = 0, ln = 0, rn = 0; // number of clients in master, left and right area
+	Client *c;
+
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) {
+		if (!m->nmaster || n < m->nmaster)
+			mn += 1;
+		else if ((n - m->nmaster) % 2)
+			ln += 1; // total factor of left hand stacke area
+		else
+			rn += 1; // total factor of right hand stack area
+	}
+
+	if (n == 0)
+		return;
+
+	/* initialize areas */
+	mx = m->wx;
+	my = m->wy;
+	mh = m->wh;
+	mw = m->ww;
+	lh = m->wh;
+	rh = m->wh;
+
+	if (m->nmaster && n > m->nmaster) {
+		/* go mfact box in the center if more than nmaster clients */
+		if (n - m->nmaster > 1) {
+			/* ||<-S->|<---M--->|<-S->|| */
+			mw = m->ww * m->mfact;
+			lw = (m->ww - mw) / 2;
+			mx += lw;
+		} else {
+			/* ||<---M--->|<-S->|| */
+			mw = mw * m->mfact;
+			lw = m->ww - mw;
+		}
+		rw = lw;
+		lx = m->wx;
+		ly = m->wy;
+		rx = mx + mw;
+		ry = m->wy;
+	}
+
+	for (i = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), i++) {
+		if (!m->nmaster || i < m->nmaster) {
+			/* nmaster clients are stacked vertically, in the center of the screen */
+			resize(c, mx, my, mw - (2*c->bw), mh / mn - (2*c->bw), 0);
+			my += HEIGHT(c);
+		} else {
+			/* stack clients are stacked vertically */
+			if ((i - m->nmaster) % 2 ) {
+				resize(c, lx, ly, lw - (2*c->bw), lh / ln - (2*c->bw), 0);
+				ly += HEIGHT(c);
+			} else {
+				resize(c, rx, ry, rw - (2*c->bw), rh / rn - (2*c->bw), 0);
+				ry += HEIGHT(c);
+			}
+		}
+	}
+}
+#endif
\ No newline at end of file
diff --git a/patch/centeredmaster.h b/patch/centeredmaster.h
new file mode 100644
index 0000000..b047212
--- /dev/null
+++ b/patch/centeredmaster.h
@@ -0,0 +1 @@
+static void centeredmaster(Monitor *m);
\ No newline at end of file
diff --git a/patch/cfacts.c b/patch/cfacts.c
index b193c92..b06098a 100644
--- a/patch/cfacts.c
+++ b/patch/cfacts.c
@@ -1,5 +1,6 @@
 void
-setcfact(const Arg *arg) {
+setcfact(const Arg *arg)
+{
 	float f;
 	Client *c;
 
@@ -19,10 +20,11 @@ setcfact(const Arg *arg) {
 void
 getfacts(Monitor *m, float *mf, float *sf)
 {
+	unsigned int n;
 	float mfacts = 0, sfacts = 0;
 	Client *c;
 
-	for (c = nexttiled(m->clients); c; c = nexttiled(c->next)) {
+	for (n = 0, c = nexttiled(m->clients); c; c = nexttiled(c->next), n++) {
 		if (!m->nmaster || n < m->nmaster)
 			mfacts += c->cfact;
 		else
diff --git a/patch/cfacts.h b/patch/cfacts.h
index 86d6ef8..1005f97 100644
--- a/patch/cfacts.h
+++ b/patch/cfacts.h
@@ -1,2 +1,2 @@
-static void getfacts(Monitor *m, float *mf, float *sf)
+static void getfacts(Monitor *m, float *mf, float *sf);
 static void setcfact(const Arg *arg);
\ No newline at end of file
diff --git a/patch/include.c b/patch/include.c
index 2cd434e..156fbac 100644
--- a/patch/include.c
+++ b/patch/include.c
@@ -62,6 +62,14 @@
 #include "bstackhoriz.c"
 #endif
 
+#if CENTEREDMASTER_LAYOUT
+#include "centeredmaster.c"
+#endif
+
+#if CENTEREDFLOATINGMASTER_LAYOUT
+#include "centeredfloatingmaster.c"
+#endif
+
 #if DECK_LAYOUT
 #include "deck.c"
 #endif
diff --git a/patch/include.h b/patch/include.h
index 280b27a..596f303 100644
--- a/patch/include.h
+++ b/patch/include.h
@@ -58,6 +58,14 @@
 #include "bstackhoriz.h"
 #endif
 
+#if CENTEREDMASTER_LAYOUT
+#include "centeredmaster.h"
+#endif
+
+#if CENTEREDFLOATINGMASTER_LAYOUT
+#include "centeredfloatingmaster.h"
+#endif
+
 #if DECK_LAYOUT
 #include "deck.h"
 #endif
diff --git a/patches.h b/patches.h
index 858ef7c..d272144 100644
--- a/patches.h
+++ b/patches.h
@@ -197,6 +197,16 @@
  */
 #define BSTACKHORIZ_LAYOUT 0
 
+/* Centered master layout.
+ * https://dwm.suckless.org/patches/centeredmaster/
+ */
+#define CENTEREDMASTER_LAYOUT 0
+
+/* Centered floating master layout.
+ * https://dwm.suckless.org/patches/centeredmaster/
+ */
+#define CENTEREDFLOATINGMASTER_LAYOUT 1
+
 /* Deck layout.
  * https://dwm.suckless.org/patches/deck/
  */