diff --git a/README b/README
index a8fcdfe..14cbddd 100644
--- a/README
+++ b/README
@@ -2,6 +2,10 @@ dmenu - dynamic menu
 ====================
 dmenu is an efficient dynamic menu for X.
 
+Patches
+-------
++ Case insensitive
++ Center
 
 Requirements
 ------------
diff --git a/config.h b/config.h
new file mode 100644
index 0000000..8ba4533
--- /dev/null
+++ b/config.h
@@ -0,0 +1,24 @@
+/* See LICENSE file for copyright and license details. */
+/* Default settings; can be overriden by command line. */
+
+static int topbar = 1;                      /* -b  option; if 0, dmenu appears at bottom     */
+/* -fn option overrides fonts[0]; default X11 font or font set */
+static const char *fonts[] = {
+	"FiraCode Nerd Font Mono:size=13",
+	"monospace:size=10"
+};
+static const char *prompt      = NULL;      /* -p  option; prompt to the left of input field */
+static const char *colors[SchemeLast][2] = {
+	/*     fg         bg       */
+	[SchemeNorm] = { "#ffffff", "#1c1b1d" },
+	[SchemeSel] = { "#1c1b1d", "#98c379" },
+	[SchemeOut] = { "#000000", "#00ffff" },
+};
+/* -l option; if nonzero, dmenu uses vertical list with given number of lines */
+static unsigned int lines      = 6;
+
+/*
+ * Characters not considered part of a word while deleting words
+ * for example: " /?\"&[]"
+ */
+static const char worddelimiters[] = " ";
diff --git a/config.mk b/config.mk
index 05d5a3e..a1aea2c 100644
--- a/config.mk
+++ b/config.mk
@@ -2,7 +2,8 @@
 VERSION = 5.0
 
 # paths
-PREFIX = /usr/local
+#PREFIX = /usr/local
+PREFIX = /home/marc/.local
 MANPREFIX = $(PREFIX)/share/man
 
 X11INC = /usr/X11R6/include
diff --git a/diff/dmenu-border-4.9.diff b/diff/dmenu-border-4.9.diff
new file mode 100644
index 0000000..89b4437
--- /dev/null
+++ b/diff/dmenu-border-4.9.diff
@@ -0,0 +1,25 @@
+diff -up dmenu-4.9-b/config.def.h dmenu-4.9-a/config.def.h
+--- dmenu-4.9-b/config.def.h	2019-02-02 13:55:02.000000000 +0100
++++ dmenu-4.9-a/config.def.h	2019-05-19 02:10:12.740040403 +0200
+@@ -21,3 +21,6 @@ static unsigned int lines      = 0;
+  * for example: " /?\"&[]"
+  */
+ static const char worddelimiters[] = " ";
++
++/* Size of the window border */
++static const unsigned int border_width = 5;
+diff -up dmenu-4.9-b/dmenu.c dmenu-4.9-a/dmenu.c
+--- dmenu-4.9-b/dmenu.c	2019-02-02 13:55:02.000000000 +0100
++++ dmenu-4.9-a/dmenu.c	2019-05-19 02:11:20.966710117 +0200
+@@ -654,9 +654,10 @@ setup(void)
+ 	swa.override_redirect = True;
+ 	swa.background_pixel = scheme[SchemeNorm][ColBg].pixel;
+ 	swa.event_mask = ExposureMask | KeyPressMask | VisibilityChangeMask;
+-	win = XCreateWindow(dpy, parentwin, x, y, mw, mh, 0,
++	win = XCreateWindow(dpy, parentwin, x, y, mw, mh, border_width,
+ 	                    CopyFromParent, CopyFromParent, CopyFromParent,
+ 	                    CWOverrideRedirect | CWBackPixel | CWEventMask, &swa);
++	XSetWindowBorder(dpy, win, scheme[SchemeSel][ColBg].pixel);
+ 	XSetClassHint(dpy, win, &ch);
+ 
+ 	/* open input methods */
diff --git a/diff/dmenu-caseinsensitive-5.0.diff b/diff/dmenu-caseinsensitive-5.0.diff
new file mode 100644
index 0000000..f476bc9
--- /dev/null
+++ b/diff/dmenu-caseinsensitive-5.0.diff
@@ -0,0 +1,53 @@
+diff --git a/dmenu.1 b/dmenu.1
+index 323f93c..3e3b31b 100644
+--- a/dmenu.1
++++ b/dmenu.1
+@@ -3,7 +3,7 @@
+ dmenu \- dynamic menu
+ .SH SYNOPSIS
+ .B dmenu
+-.RB [ \-bfiv ]
++.RB [ \-bfsv ]
+ .RB [ \-l
+ .IR lines ]
+ .RB [ \-m
+@@ -44,8 +44,8 @@ dmenu appears at the bottom of the screen.
+ dmenu grabs the keyboard before reading stdin if not reading from a tty. This
+ is faster, but will lock up X until stdin reaches end\-of\-file.
+ .TP
+-.B \-i
+-dmenu matches menu items case insensitively.
++.B \-s
++dmenu matches menu items case sensitively.
+ .TP
+ .BI \-l " lines"
+ dmenu lists items vertically, with the given number of lines.
+diff --git a/dmenu.c b/dmenu.c
+index 65f25ce..855df59 100644
+--- a/dmenu.c
++++ b/dmenu.c
+@@ -55,8 +55,9 @@ static Clr *scheme[SchemeLast];
+ 
+ #include "config.h"
+ 
+-static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
+-static char *(*fstrstr)(const char *, const char *) = strstr;
++static char * cistrstr(const char *s, const char *sub);
++static int (*fstrncmp)(const char *, const char *, size_t) = strncasecmp;
++static char *(*fstrstr)(const char *, const char *) = cistrstr;
+ 
+ static void
+ appenditem(struct item *item, struct item **list, struct item **last)
+@@ -709,9 +710,9 @@ main(int argc, char *argv[])
+ 			topbar = 0;
+ 		else if (!strcmp(argv[i], "-f"))   /* grabs keyboard before reading stdin */
+ 			fast = 1;
+-		else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
+-			fstrncmp = strncasecmp;
+-			fstrstr = cistrstr;
++		else if (!strcmp(argv[i], "-s")) { /* case-sensitive item matching */
++			fstrncmp = strncmp;
++			fstrstr = strstr;
+ 		} else if (i + 1 == argc)
+ 			usage();
+ 		/* these options take one argument */
diff --git a/diff/dmenu-center-4.8.diff b/diff/dmenu-center-4.8.diff
new file mode 100644
index 0000000..a970fcb
--- /dev/null
+++ b/diff/dmenu-center-4.8.diff
@@ -0,0 +1,56 @@
+diff --git a/dmenu.c b/dmenu.c
+index 5e9c367..2268ea9 100644
+--- a/dmenu.c
++++ b/dmenu.c
+@@ -88,6 +88,15 @@ calcoffsets(void)
+ 			break;
+ }
+ 
++static int
++max_textw(void)
++{
++	int len = 0;
++	for (struct item *item = items; item && item->text; item++)
++		len = MAX(TEXTW(item->text), len);
++	return len;
++}
++
+ static void
+ cleanup(void)
+ {
+@@ -598,6 +607,7 @@ setup(void)
+ 	bh = drw->fonts->h + 2;
+ 	lines = MAX(lines, 0);
+ 	mh = (lines + 1) * bh;
++	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
+ #ifdef XINERAMA
+ 	i = 0;
+ 	if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) {
+@@ -624,9 +634,9 @@ setup(void)
+ 				if (INTERSECT(x, y, 1, 1, info[i]))
+ 					break;
+ 
+-		x = info[i].x_org;
+-		y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
+-		mw = info[i].width;
++		mw = MIN(MAX(max_textw() + promptw, 100), info[i].width);
++		x = info[i].x_org + ((info[i].width  - mw) / 2);
++		y = info[i].y_org + ((info[i].height - mh) / 2);
+ 		XFree(info);
+ 	} else
+ #endif
+@@ -634,11 +644,10 @@ setup(void)
+ 		if (!XGetWindowAttributes(dpy, parentwin, &wa))
+ 			die("could not get embedding window attributes: 0x%lx",
+ 			    parentwin);
+-		x = 0;
+-		y = topbar ? 0 : wa.height - mh;
+-		mw = wa.width;
++		mw = MIN(MAX(max_textw() + promptw, 100), wa.width);
++		x = (wa.width  - mw) / 2;
++		y = (wa.height - mh) / 2;
+ 	}
+-	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
+ 	inputw = MIN(inputw, mw/3);
+ 	match();
+ 
diff --git a/dmenu.1 b/dmenu.1
index 323f93c..3e3b31b 100644
--- a/dmenu.1
+++ b/dmenu.1
@@ -3,7 +3,7 @@
 dmenu \- dynamic menu
 .SH SYNOPSIS
 .B dmenu
-.RB [ \-bfiv ]
+.RB [ \-bfsv ]
 .RB [ \-l
 .IR lines ]
 .RB [ \-m
@@ -44,8 +44,8 @@ dmenu appears at the bottom of the screen.
 dmenu grabs the keyboard before reading stdin if not reading from a tty. This
 is faster, but will lock up X until stdin reaches end\-of\-file.
 .TP
-.B \-i
-dmenu matches menu items case insensitively.
+.B \-s
+dmenu matches menu items case sensitively.
 .TP
 .BI \-l " lines"
 dmenu lists items vertically, with the given number of lines.
diff --git a/dmenu.c b/dmenu.c
index 65f25ce..297c7fd 100644
--- a/dmenu.c
+++ b/dmenu.c
@@ -55,8 +55,9 @@ static Clr *scheme[SchemeLast];
 
 #include "config.h"
 
-static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
-static char *(*fstrstr)(const char *, const char *) = strstr;
+static char * cistrstr(const char *s, const char *sub);
+static int (*fstrncmp)(const char *, const char *, size_t) = strncasecmp;
+static char *(*fstrstr)(const char *, const char *) = cistrstr;
 
 static void
 appenditem(struct item *item, struct item **list, struct item **last)
@@ -89,6 +90,15 @@ calcoffsets(void)
 			break;
 }
 
+static int
+max_textw(void)
+{
+	int len = 0;
+	for (struct item *item = items; item && item->text; item++)
+		len = MAX(TEXTW(item->text), len);
+	return len;
+}
+
 static void
 cleanup(void)
 {
@@ -611,6 +621,7 @@ setup(void)
 	bh = drw->fonts->h + 2;
 	lines = MAX(lines, 0);
 	mh = (lines + 1) * bh;
+	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
 #ifdef XINERAMA
 	i = 0;
 	if (parentwin == root && (info = XineramaQueryScreens(dpy, &n))) {
@@ -637,9 +648,9 @@ setup(void)
 				if (INTERSECT(x, y, 1, 1, info[i]))
 					break;
 
-		x = info[i].x_org;
-		y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
-		mw = info[i].width;
+		mw = MIN(MAX(max_textw() + promptw, 100), info[i].width);
+		x = info[i].x_org + ((info[i].width  - mw) / 2);
+		y = info[i].y_org + ((info[i].height - mh) / 2);
 		XFree(info);
 	} else
 #endif
@@ -647,11 +658,10 @@ setup(void)
 		if (!XGetWindowAttributes(dpy, parentwin, &wa))
 			die("could not get embedding window attributes: 0x%lx",
 			    parentwin);
-		x = 0;
-		y = topbar ? 0 : wa.height - mh;
-		mw = wa.width;
+		mw = MIN(MAX(max_textw() + promptw, 100), wa.width);
+		x = (wa.width  - mw) / 2;
+		y = (wa.height - mh) / 2;
 	}
-	promptw = (prompt && *prompt) ? TEXTW(prompt) - lrpad / 4 : 0;
 	inputw = MIN(inputw, mw/3);
 	match();
 
@@ -709,9 +719,9 @@ main(int argc, char *argv[])
 			topbar = 0;
 		else if (!strcmp(argv[i], "-f"))   /* grabs keyboard before reading stdin */
 			fast = 1;
-		else if (!strcmp(argv[i], "-i")) { /* case-insensitive item matching */
-			fstrncmp = strncasecmp;
-			fstrstr = cistrstr;
+		else if (!strcmp(argv[i], "-s")) { /* case-sensitive item matching */
+			fstrncmp = strncmp;
+			fstrstr = strstr;
 		} else if (i + 1 == argc)
 			usage();
 		/* these options take one argument */