diff --git a/Makefile b/Makefile
index 51f3721..029bef0 100644
--- a/Makefile
+++ b/Makefile
@@ -152,7 +152,6 @@ define maplookup
 $(patsubst $(strip $(1)):%,%,$(filter $(strip $(1)):%,$(2)))
 endef
 
-
 #Include options and target specific to the OUTPUT_TYPE
 include Makefile.$(OUTPUT_TYPE)
 
@@ -203,13 +202,16 @@ espsize:
 espmac:
 	$(Q) esptool --port /dev/ttyUSB0 read_mac
 
-all: checkdirs parser $(TARGET_OUT) $(FW_BASE)
+all: checkdirs
+	$(Q) make actual_all -j4 -B
+
+actual_all: parser $(TARGET_OUT) $(FW_BASE)
 
 libesphttpd/Makefile:
 	$(Q) [[ -e "libesphttpd/Makefile" ]] || echo -e "\e[31mlibesphttpd submodule missing.\nIf build fails, run \"git submodule init\" and \"git submodule update\".\e[0m"
 
 libesphttpd: libesphttpd/Makefile
-	$(Q) make -C libesphttpd USE_OPENSDK=$(USE_OPENSDK) SERVERNAME_PREFIX="ESPTerm "
+	$(Q) make -C libesphttpd USE_OPENSDK=$(USE_OPENSDK) SERVERNAME_PREFIX="ESPTerm " -j4
 
 $(APP_AR): libesphttpd $(OBJ)
 	$(vecho) "AR $@"
@@ -217,6 +219,9 @@ $(APP_AR): libesphttpd $(OBJ)
 
 checkdirs: $(BUILD_DIR) html/favicon.ico
 
+html/favicon.ico:
+	$(Q) [[ -e "html/favicon.ico" ]] || ./build_web.sh
+
 $(BUILD_DIR):
 	$(Q) mkdir -p $@
 
diff --git a/front-end b/front-end
index 79664f5..0a975e8 160000
--- a/front-end
+++ b/front-end
@@ -1 +1 @@
-Subproject commit 79664f56a63122da87ad91eaebcdf85083b7f0a5
+Subproject commit 0a975e88016f953d5ca4d99d53c6dce7d164c119
diff --git a/user/apars_csi.c b/user/apars_csi.c
index fc12b02..4ed852d 100644
--- a/user/apars_csi.c
+++ b/user/apars_csi.c
@@ -244,8 +244,7 @@ switch_csi_Plain(CSI_Data *opts)
 			break;
 
 		case 'b':
-			// TODO repeat preceding graphic character n1 times
-			ansi_noimpl("Repeat char");
+			screen_repeat_last_character(n1);
 			return;
 
 			// Set X
diff --git a/user/screen.c b/user/screen.c
index 53bc27e..2a86075 100644
--- a/user/screen.c
+++ b/user/screen.c
@@ -61,6 +61,7 @@ static struct {
 	int vm1;
 
 	u32 tab_stops[TABSTOP_WORDS]; // tab stops bitmap
+	char last_char[4];
 } scr;
 
 #define R0 scr.vm0
@@ -995,7 +996,7 @@ screen_cursor_move(int dy, int dx, bool scroll)
 		if (cursor.auto_wrap && cursor.reverse_wrap) {
 			// this is mimicking a behavior from xterm that allows any number of steps backwards with reverse wraparound enabled
 			int steps = -cursor.x;
-			if(steps > 1000) steps = 1; // avoid something stupid causing infinite loop here
+			if(steps > W*H) steps = W*H; // avoid something stupid causing infinite loop here
 			for(;steps>0;steps--) {
 				if (cursor.x > 0) {
 					// backspace should go to col 79 if "hanging" after 80 (as if it never actually left the 80th col)
@@ -1349,44 +1350,8 @@ screen_report_sgr(char *buffer)
 
 //region --- Printing ---
 
-/**
- * Set a character in the cursor color, move to right with wrap.
- */
-void ICACHE_FLASH_ATTR
-screen_putchar(const char *ch)
+static const char *putchar_graphic(const char *ch)
 {
-	NOTIFY_LOCK();
-
-	// clear "hanging" flag if not possible
-	clear_invalid_hanging();
-
-	if (cursor.conceal) {
-		ch = " ";
-	}
-
-	// Special treatment for CRLF
-	switch (ch[0]) {
-		case CR:
-			screen_cursor_set_x(0);
-			goto done;
-
-		case LF:
-			screen_cursor_move(1, 0, true); // can scroll
-			goto done;
-
-		case BS:
-			screen_cursor_move(0, -1, false);
-			// we should not wrap around, and backspace should not even clear the cell (verified in xterm)
-			goto done;
-
-		default:
-			if (ch[0] < SP) {
-				// Discard
-				warn("Ignoring control char %d", (int)ch[0]);
-				goto done;
-			}
-	}
-
 	if (cursor.hanging) {
 		// perform the scheduled wrap if hanging
 		// if auto-wrap = off, it overwrites the last char
@@ -1410,7 +1375,7 @@ screen_putchar(const char *ch)
 	if (cursor.x < W-1 && scr.insert_mode) screen_insert_characters(1);
 
 	if (ch[1] == 0 && ch[0] <= 0x7f) {
-		// we have len=1 and ASCII
+		// we have len=1 and ASCII, can be re-mapped using a table
 		utf8_remap(c->c, ch[0], (cursor.charsetN == 0) ? cursor.charset0 : cursor.charset1);
 	}
 	else {
@@ -1434,10 +1399,80 @@ screen_putchar(const char *ch)
 		cursor.x = W - 1;
 	}
 
+	return c->c;
+}
+
+/**
+ * Set a character in the cursor color, move to right with wrap.
+ */
+void ICACHE_FLASH_ATTR
+screen_putchar(const char *ch)
+{
+	NOTIFY_LOCK();
+
+	// clear "hanging" flag if not possible
+	clear_invalid_hanging();
+
+	if (cursor.conceal) {
+		ch = " ";
+	}
+
+	// Special treatment for CRLF
+	switch (ch[0]) {
+		case CR:
+			screen_cursor_set_x(0);
+			goto done;
+
+		case LF:
+			screen_cursor_move(1, 0, true); // can scroll
+			goto done;
+
+		case BS:
+			screen_cursor_move(0, -1, false);
+			// we should not wrap around, and backspace should not even clear the cell (verified in xterm)
+			goto done;
+
+		default:
+			if (ch[0] < SP) {
+				// Discard
+				warn("Ignoring control char %d", (int)ch[0]);
+				goto done;
+			}
+	}
+
+	const char *result = putchar_graphic(ch);
+
+	// Remember the resulting character
+	// If we re-mapped ASCII to high UTF, the following Repeat command will
+	// not have to call the remap function repeatedly.
+	strncpy(scr.last_char, result, 4);
+
 	done:
 	NOTIFY_DONE();
 }
 
+/**
+ * Repeat last graphic character
+ * @param count
+ */
+void ICACHE_FLASH_ATTR
+screen_repeat_last_character(int count)
+{
+	NOTIFY_LOCK();
+	if (scr.last_char[0]==0) {
+		scr.last_char[0] = ' ';
+		scr.last_char[1] = 0;
+	}
+
+	if (count > W*H) count = W*H;
+
+	while (count > 0) {
+		putchar_graphic(scr.last_char);
+		count--;
+	}
+	NOTIFY_DONE();
+}
+
 /**
  * UTF remap
  * @param out - output char[4]
diff --git a/user/screen.h b/user/screen.h
index 68c64ba..e5918ea 100644
--- a/user/screen.h
+++ b/user/screen.h
@@ -302,6 +302,12 @@ void screen_putchar(const char *ch);
  */
 void screen_fill_with_E(void);
 
+/**
+ * Repeat last graphic character
+ * @param count
+ */
+void screen_repeat_last_character(int count);
+
 // --- Queries ---
 
 /** Report current SGR as num;num;... for DAC query */