# HG changeset patch
# User Christian Brabandt <cb@256bit.org>
# Date 1461963607 -7200
# Node ID 773d627cac0b75c8f6763e88e305c3e790eb7088
# Parent  eea316a77946f19402dc726f2b919a4e2ca1d179
commit https://github.com/vim/vim/commit/61be73bb0f965a895bfb064ea3e55476ac175162
Author: Bram Moolenaar <Bram@vim.org>
Date:   Fri Apr 29 22:59:22 2016 +0200

    patch 7.4.1799
    Problem:    'guicolors' is a confusing option name.
    Solution:   Use 'termguicolors' instead. (Hirohito Higashi)

diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -3477,18 +3477,6 @@ A jump table for the options with a shor
 	This option cannot be set from a |modeline| or in the |sandbox|, for
 	security reasons.
 
-						*'guicolors'* *'gcol'*
-'guicolors' 'gcol'	boolean (default off)
-			global
-			{not in Vi}
-			{not available when compiled without the 
-			|+termtruecolor| feature}
-	When on, uses |highlight-guifg| and |highlight-guibg| attributes in 
-	the terminal (thus using 24-bit color). Requires a ISO-8613-3
-	compatible terminal.
-	If setting this option does not work (produces a colorless UI) 
-	reading |xterm-true-color| might help.
-
 			*'guicursor'* *'gcr'* *E545* *E546* *E548* *E549*
 'guicursor' 'gcr'	string	(default "n-v-c:block-Cursor/lCursor,
 					ve:ver35-Cursor,
@@ -7551,6 +7539,18 @@ A jump table for the options with a shor
 		:set encoding=utf-8
 <	You need to do this when your system has no locale support for UTF-8.
 
+						*'termguicolors'* *'tgc'*
+'termguicolors' 'tgc'	boolean (default off)
+			global
+			{not in Vi}
+			{not available when compiled without the
+			|+termguicolors| feature}
+	When on, uses |highlight-guifg| and |highlight-guibg| attributes in
+	the terminal (thus using 24-bit color). Requires a ISO-8613-3
+	compatible terminal.
+	If setting this option does not work (produces a colorless UI)
+	reading |xterm-true-color| might help.
+
 						*'terse'* *'noterse'*
 'terse'			boolean	(default off)
 			global
diff --git a/runtime/doc/term.txt b/runtime/doc/term.txt
--- a/runtime/doc/term.txt
+++ b/runtime/doc/term.txt
@@ -1,4 +1,4 @@
-*term.txt*      For Vim version 7.4.  Last change: 2016 Apr 21
+*term.txt*      For Vim version 7.4.  Last change: 2016 Apr 29
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -302,7 +302,6 @@ Added by Vim (there are no standard code
 	t_u7	request cursor position (for xterm)		*t_u7* *'t_u7'*
 		see |'ambiwidth'|
 	t_RB	request terminal background color		*t_RB* *'t_RB'*
-		see |'ambiwidth'|
 	t_8f	set foreground color (R, G, B)			*t_8f* *'t_8f'*
 		|xterm-true-color|
 	t_8b	set background color (R, G, B)			*t_8b* *'t_8b'*
@@ -425,19 +424,23 @@ Vim has started, the escape sequences ma
 
 							*xterm-true-color*
 Vim supports using true colors in the terminal (taken from |highlight-guifg|
-and |highlight-guibg|), given that terminal supports this. To make this 
-work, 'guicolors' option needs to be set.
+and |highlight-guibg|), given that the terminal supports this. To make this 
+work the 'termguicolors' option needs to be set.
 
-Sometimes setting 'guicolors' is not enough and one has to set the |t_8f| and
-|t_8b| options explicitly. Default values of these options are
-`^[[38;2;%lu;%lu;%lum` and `^[[48;2;%lu;%lu;%lum` (replace `^[` with real
-escape) respectively, but it is only set when `$TERM` is `xterm`. Some
-terminals accept the same sequences, but with all semicolons replaced by
-colons (this is actually more compatible, but less widely supported). These
-options contain printf strings, with |printf()| (actually, its C equivalent
-hence `l` modifier) invoked with the t_ option value and three unsigned long
-integers that may have any value between 0 and 255 (inclusive) representing
-red, green and blue colors respectively.
+Sometimes setting 'termguicolors' is not enough and one has to set the |t_8f|
+and |t_8b| options explicitly. Default values of these options are
+"^[[38;2;%lu;%lu;%lum" and "^[[48;2;%lu;%lu;%lum" respectively, but it is only
+set when `$TERM` is `xterm`. Some terminals accept the same sequences, but
+with all semicolons replaced by colons (this is actually more compatible, but
+less widely supported): >
+	 set t_8f=^[[38:2:%lu:%lu:%lum
+	 set t_8b=^[[48:2:%lu:%lu:%lum
+(replace `^[` with real escape) 
+
+These options contain printf strings, with |printf()| (actually, its C
+equivalent hence `l` modifier) invoked with the t_ option value and three
+unsigned long integers that may have any value between 0 and 255 (inclusive)
+representing red, green and blue colors respectively.
 
 							*xterm-resize*
 Window resizing with xterm only works if the allowWindowOps resource is
diff --git a/runtime/doc/various.txt b/runtime/doc/various.txt
--- a/runtime/doc/various.txt
+++ b/runtime/doc/various.txt
@@ -1,4 +1,4 @@
-*various.txt*   For Vim version 7.4.  Last change: 2016 Mar 20
+*various.txt*   For Vim version 7.4.  Last change: 2016 Apr 29
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -424,7 +424,7 @@ m  *+tcl*		Tcl interface |tcl|
 m  *+tcl/dyn*		Tcl interface |tcl-dynamic| |/dyn|
    *+terminfo*		uses |terminfo| instead of termcap
 N  *+termresponse*	support for |t_RV| and |v:termresponse|
-m  *+termtruecolor*	24-bit color in xterm-compatible terminals support
+B  *+termguicolors*	24-bit color in xterm-compatible terminals support
 N  *+textobjects*	|text-objects| selection
    *+tgetent*		non-Unix only: able to use external termcap
 N  *+timers*		the |timer_start()| function
diff --git a/runtime/syntax/dircolors.vim b/runtime/syntax/dircolors.vim
--- a/runtime/syntax/dircolors.vim
+++ b/runtime/syntax/dircolors.vim
@@ -44,24 +44,24 @@ highlight default link dircolorsExtensio
 highlight default link dircolorsEscape    Special
 
 function! s:set_guicolors() abort
-    let s:guicolors = {}
+    let s:termguicolors = {}
 
-    let s:guicolors[0]  = "Black"
-    let s:guicolors[1]  = "DarkRed"
-    let s:guicolors[2]  = "DarkGreen"
-    let s:guicolors[3]  = "DarkYellow"
-    let s:guicolors[4]  = "DarkBlue"
-    let s:guicolors[5]  = "DarkMagenta"
-    let s:guicolors[6]  = "DarkCyan"
-    let s:guicolors[7]  = "Gray"
-    let s:guicolors[8]  = "DarkGray"
-    let s:guicolors[9]  = "Red"
-    let s:guicolors[10] = "Green"
-    let s:guicolors[11] = "Yellow"
-    let s:guicolors[12] = "Blue"
-    let s:guicolors[13] = "Magenta"
-    let s:guicolors[14] = "Cyan"
-    let s:guicolors[15] = "White"
+    let s:termguicolors[0]  = "Black"
+    let s:termguicolors[1]  = "DarkRed"
+    let s:termguicolors[2]  = "DarkGreen"
+    let s:termguicolors[3]  = "DarkYellow"
+    let s:termguicolors[4]  = "DarkBlue"
+    let s:termguicolors[5]  = "DarkMagenta"
+    let s:termguicolors[6]  = "DarkCyan"
+    let s:termguicolors[7]  = "Gray"
+    let s:termguicolors[8]  = "DarkGray"
+    let s:termguicolors[9]  = "Red"
+    let s:termguicolors[10] = "Green"
+    let s:termguicolors[11] = "Yellow"
+    let s:termguicolors[12] = "Blue"
+    let s:termguicolors[13] = "Magenta"
+    let s:termguicolors[14] = "Cyan"
+    let s:termguicolors[15] = "White"
 
     let xterm_palette = ["00", "5f", "87", "af", "d7", "ff"]
 
@@ -70,7 +70,7 @@ function! s:set_guicolors() abort
     for r in xterm_palette
         for g in xterm_palette
             for b in xterm_palette
-                let s:guicolors[cur_col] = '#' . r . g . b
+                let s:termguicolors[cur_col] = '#' . r . g . b
                 let cur_col += 1
             endfor
         endfor
@@ -78,14 +78,14 @@ function! s:set_guicolors() abort
 
     for i in range(24)
         let g = i * 0xa + 8
-        let s:guicolors[i + 232] = '#' . g . g . g
+        let s:termguicolors[i + 232] = '#' . g . g . g
     endfor
 endfunction
 
 function! s:get_hi_str(color, place) abort
     if a:color >= 0 && a:color <= 255
         if has('gui_running')
-            return ' gui' . a:place . '=' . s:guicolors[a:color]
+            return ' gui' . a:place . '=' . s:termguicolors[a:color]
         elseif a:color <= 7 || &t_Co == 256 || &t_Co == 88
             return ' cterm' . a:place . '=' . a:color
         endif
diff --git a/src/eval.c b/src/eval.c
--- a/src/eval.c
+++ b/src/eval.c
@@ -14042,15 +14042,15 @@ f_has(typval_T *argvars, typval_T *rettv
 	"tcl",
 # endif
 #endif
+#ifdef FEAT_TERMGUICOLORS
+	"termguicolors",
+#endif
 #ifdef TERMINFO
 	"terminfo",
 #endif
 #ifdef FEAT_TERMRESPONSE
 	"termresponse",
 #endif
-#ifdef FEAT_TERMTRUECOLOR
-	"termtruecolor",
-#endif
 #ifdef FEAT_TEXTOBJ
 	"textobjects",
 #endif
@@ -20019,7 +20019,7 @@ f_synIDattr(typval_T *argvars UNUSED, ty
     }
     else
     {
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
 	if (USE_24BIT)
 	    modec = 'g';
 	else
diff --git a/src/feature.h b/src/feature.h
--- a/src/feature.h
+++ b/src/feature.h
@@ -815,10 +815,10 @@
 #endif
 
 /*
- * +termtruecolor	'guicolor' option.
+ * +termguicolors	'termguicolors' option.
  */
 #if (defined(FEAT_BIG) && defined(FEAT_SYN_HL)) && !defined(ALWAYS_USE_GUI)
-# define FEAT_TERMTRUECOLOR
+# define FEAT_TERMGUICOLORS
 #endif
 
 /* Mac specific thing: Codewarrior interface. */
diff --git a/src/globals.h b/src/globals.h
--- a/src/globals.h
+++ b/src/globals.h
@@ -369,7 +369,7 @@ EXTERN char_u	*use_gvimrc INIT(= NULL);	
 EXTERN int	cterm_normal_fg_color INIT(= 0);
 EXTERN int	cterm_normal_fg_bold INIT(= 0);
 EXTERN int	cterm_normal_bg_color INIT(= 0);
-#ifdef FEAT_TERMTRUECOLOR
+#ifdef FEAT_TERMGUICOLORS
 EXTERN long_u	cterm_normal_fg_gui_color INIT(= INVALCOLOR);
 EXTERN long_u	cterm_normal_bg_gui_color INIT(= INVALCOLOR);
 #endif
diff --git a/src/hardcopy.c b/src/hardcopy.c
--- a/src/hardcopy.c
+++ b/src/hardcopy.c
@@ -307,7 +307,7 @@ prt_get_attr(
     pattr->underline = (highlight_has_attr(hl_id, HL_UNDERLINE, modec) != NULL);
     pattr->undercurl = (highlight_has_attr(hl_id, HL_UNDERCURL, modec) != NULL);
 
-# if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
     if (USE_24BIT)
     {
 	bg_color = highlight_gui_color_rgb(hl_id, FALSE);
diff --git a/src/option.c b/src/option.c
--- a/src/option.c
+++ b/src/option.c
@@ -1305,15 +1305,6 @@ static struct vimoption options[] =
 			    {(char_u *)NULL, (char_u *)0L}
 #endif
 			    SCRIPTID_INIT},
-    {"guicolors",   "gcol", P_BOOL|P_VI_DEF|P_VIM|P_RCLR,
-#ifdef FEAT_TERMTRUECOLOR
-			    (char_u *)&p_guicolors, PV_NONE,
-			    {(char_u *)FALSE, (char_u *)FALSE}
-#else
-			    (char_u*)NULL, PV_NONE,
-			    {(char_u *)FALSE, (char_u *)FALSE}
-#endif
-			    SCRIPTID_INIT},
     {"guicursor",    "gcr", P_STRING|P_VI_DEF|P_ONECOMMA|P_NODUP,
 #ifdef CURSOR_SHAPE
 			    (char_u *)&p_guicursor, PV_NONE,
@@ -2625,6 +2616,15 @@ static struct vimoption options[] =
 			    {(char_u *)0L, (char_u *)0L}
 #endif
 			    SCRIPTID_INIT},
+    {"termguicolors", "tgc", P_BOOL|P_VI_DEF|P_VIM|P_RCLR,
+#ifdef FEAT_TERMGUICOLORS
+			    (char_u *)&p_tgc, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)FALSE}
+#else
+			    (char_u*)NULL, PV_NONE,
+			    {(char_u *)FALSE, (char_u *)FALSE}
+#endif
+			    SCRIPTID_INIT},
     {"terse",	    NULL,   P_BOOL|P_VI_DEF,
 			    (char_u *)&p_terse, PV_NONE,
 			    {(char_u *)FALSE, (char_u *)0L} SCRIPTID_INIT},
@@ -8364,9 +8364,9 @@ set_bool_option(
 
 #endif
 
-#ifdef FEAT_TERMTRUECOLOR
-    /* 'guicolors' */
-    else if ((int *)varp == &p_guicolors)
+#ifdef FEAT_TERMGUICOLORS
+    /* 'termguicolors' */
+    else if ((int *)varp == &p_tgc)
     {
 # ifdef FEAT_GUI
 	if (!gui.in_use && !gui.starting)
diff --git a/src/option.h b/src/option.h
--- a/src/option.h
+++ b/src/option.h
@@ -527,9 +527,6 @@ EXTERN char_u	*p_popt;	/* 'printoptions'
 EXTERN char_u	*p_header;	/* 'printheader' */
 #endif
 EXTERN int	p_prompt;	/* 'prompt' */
-#ifdef FEAT_TERMTRUECOLOR
-EXTERN int	p_guicolors;	/* 'guicolors' */
-#endif
 #ifdef FEAT_GUI
 EXTERN char_u	*p_guifont;	/* 'guifont' */
 # ifdef FEAT_XFONTSET
@@ -843,6 +840,9 @@ EXTERN int	p_tbidi;	/* 'termbidi' */
 #ifdef FEAT_MBYTE
 EXTERN char_u	*p_tenc;	/* 'termencoding' */
 #endif
+#ifdef FEAT_TERMGUICOLORS
+EXTERN int	p_tgc;		/* 'termguicolors' */
+#endif
 EXTERN int	p_terse;	/* 'terse' */
 EXTERN int	p_ta;		/* 'textauto' */
 EXTERN int	p_to;		/* 'tildeop' */
diff --git a/src/proto/term.pro b/src/proto/term.pro
--- a/src/proto/term.pro
+++ b/src/proto/term.pro
@@ -1,7 +1,7 @@
 /* term.c */
-guicolor_T termtrue_mch_get_color(char_u *name);
-guicolor_T termtrue_get_color(char_u *name);
-long_u termtrue_mch_get_rgb(guicolor_T color);
+guicolor_T termgui_mch_get_color(char_u *name);
+guicolor_T termgui_get_color(char_u *name);
+long_u termgui_mch_get_rgb(guicolor_T color);
 int set_termname(char_u *term);
 void set_mouse_termcode(int n, char_u *s);
 void del_mouse_termcode(int n);
diff --git a/src/screen.c b/src/screen.c
--- a/src/screen.c
+++ b/src/screen.c
@@ -7840,12 +7840,12 @@ screen_start_highlight(int attr)
 	    if ((attr & HL_BOLD) && T_MD != NULL)	/* bold */
 		out_str(T_MD);
 	    else if (aep != NULL && cterm_normal_fg_bold &&
-#ifdef FEAT_TERMTRUECOLOR
-			(p_guicolors ?
+#ifdef FEAT_TERMGUICOLORS
+			(p_tgc ?
 			    (aep->ae_u.cterm.fg_rgb != (long_u)INVALCOLOR):
 #endif
 			    (t_colors > 1 && aep->ae_u.cterm.fg_color)
-#ifdef FEAT_TERMTRUECOLOR
+#ifdef FEAT_TERMGUICOLORS
 			)
 #endif
 		    )
@@ -7868,8 +7868,8 @@ screen_start_highlight(int attr)
 	     */
 	    if (aep != NULL)
 	    {
-#ifdef FEAT_TERMTRUECOLOR
-		if (p_guicolors)
+#ifdef FEAT_TERMGUICOLORS
+		if (p_tgc)
 		{
 		    if (aep->ae_u.cterm.fg_rgb != (long_u)INVALCOLOR)
 			term_fg_rgb_color(aep->ae_u.cterm.fg_rgb);
@@ -7931,13 +7931,13 @@ screen_stop_highlight(void)
 		     */
 		    aep = syn_cterm_attr2entry(screen_attr);
 		    if (aep != NULL &&
-#ifdef FEAT_TERMTRUECOLOR
-			    (p_guicolors ?
+#ifdef FEAT_TERMGUICOLORS
+			    (p_tgc ?
 				(aep->ae_u.cterm.fg_rgb != (long_u)INVALCOLOR ||
 				 aep->ae_u.cterm.bg_rgb != (long_u)INVALCOLOR):
 #endif
 				(aep->ae_u.cterm.fg_color || aep->ae_u.cterm.bg_color)
-#ifdef FEAT_TERMTRUECOLOR
+#ifdef FEAT_TERMGUICOLORS
 			    )
 #endif
 			)
@@ -7988,8 +7988,8 @@ screen_stop_highlight(void)
 	    if (do_ME || (screen_attr & (HL_BOLD | HL_INVERSE)))
 		out_str(T_ME);
 
-#ifdef FEAT_TERMTRUECOLOR
-	    if (p_guicolors)
+#ifdef FEAT_TERMGUICOLORS
+	    if (p_tgc)
 	    {
 		if (cterm_normal_fg_gui_color != (long_u)INVALCOLOR)
 		    term_fg_rgb_color(cterm_normal_fg_gui_color);
@@ -8025,8 +8025,8 @@ reset_cterm_colors(void)
     if (IS_CTERM)
     {
 	/* set Normal cterm colors */
-#ifdef FEAT_TERMTRUECOLOR
-	if (p_guicolors ?
+#ifdef FEAT_TERMGUICOLORS
+	if (p_tgc ?
 		(cterm_normal_fg_gui_color != (long_u)INVALCOLOR
 		 || cterm_normal_bg_gui_color != (long_u)INVALCOLOR):
 		(cterm_normal_fg_color > 0 || cterm_normal_bg_color > 0))
@@ -8959,8 +8959,8 @@ can_clear(char_u *p)
 #ifdef FEAT_GUI
 		|| gui.in_use
 #endif
-#ifdef FEAT_TERMTRUECOLOR
-		|| (p_guicolors && cterm_normal_bg_gui_color != (long_u)INVALCOLOR)
+#ifdef FEAT_TERMGUICOLORS
+		|| (p_tgc && cterm_normal_bg_gui_color != (long_u)INVALCOLOR)
 #endif
 		|| cterm_normal_bg_color == 0 || *T_UT != NUL));
 }
@@ -10293,8 +10293,8 @@ draw_tabline(void)
 #ifdef FEAT_GUI
 					    && !gui.in_use
 #endif
-#ifdef FEAT_TERMTRUECOLOR
-					    && !p_guicolors
+#ifdef FEAT_TERMGUICOLORS
+					    && !p_tgc
 #endif
 					    );
 
diff --git a/src/structs.h b/src/structs.h
--- a/src/structs.h
+++ b/src/structs.h
@@ -85,7 +85,7 @@ typedef struct file_buffer	buf_T;  /* fo
 #  include <X11/Intrinsic.h>
 # endif
 # define guicolor_T long_u		/* avoid error in prototypes and 
-					 * make FEAT_TERMTRUECOLOR work */
+					 * make FEAT_TERMGUICOLORS work */
 # define INVALCOLOR ((guicolor_T)0x1ffffff)
 #endif
 
@@ -913,7 +913,7 @@ typedef struct attr_entry
 	    /* These colors need to be > 8 bits to hold 256. */
 	    short_u	    fg_color;	/* foreground color number */
 	    short_u	    bg_color;	/* background color number */
-# ifdef FEAT_TERMTRUECOLOR
+# ifdef FEAT_TERMGUICOLORS
 	    long_u	    fg_rgb;	/* foreground color RGB */
 	    long_u	    bg_rgb;	/* background color RGB */
 # endif
diff --git a/src/syntax.c b/src/syntax.c
--- a/src/syntax.c
+++ b/src/syntax.c
@@ -34,7 +34,7 @@ struct hl_group
     int		sg_cterm_bg;	/* terminal bg color number + 1 */
     int		sg_cterm_attr;	/* Screen attr for color term mode */
 /* for when using the GUI */
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
     guicolor_T	sg_gui_fg;	/* GUI foreground color handle */
     guicolor_T	sg_gui_bg;	/* GUI background color handle */
 #endif
@@ -99,7 +99,7 @@ static int syn_list_header(int did_heade
 static int hl_has_settings(int idx, int check_link);
 static void highlight_clear(int idx);
 
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
 static void gui_do_one_color(int idx, int do_menu, int do_tooltip);
 static guicolor_T color_name2handle(char_u *name);
 #endif
@@ -7337,7 +7337,7 @@ do_highlight(
 	    for (idx = 0; idx < highlight_ga.ga_len; ++idx)
 		highlight_clear(idx);
 	    init_highlight(TRUE, TRUE);
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
 	    if (USE_24BIT)
 		highlight_gui_started();
 #endif
@@ -7792,14 +7792,14 @@ do_highlight(
 		if (!init)
 		    HL_TABLE()[idx].sg_set |= SG_GUI;
 
-# if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
 		/* In GUI guifg colors are only used when recognized */
 		i = color_name2handle(arg);
 		if (i != INVALCOLOR || STRCMP(arg, "NONE") == 0
 #  ifdef FEAT_GUI
 			|| !(USE_24BIT)
 #  else
-			|| !p_guicolors
+			|| !p_tgc
 #  endif
 		   )
 		{
@@ -7810,7 +7810,7 @@ do_highlight(
 			HL_TABLE()[idx].sg_gui_fg_name = vim_strsave(arg);
 		    else
 			HL_TABLE()[idx].sg_gui_fg_name = NULL;
-# if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
 #  ifdef FEAT_GUI_X11
 		    if (is_menu_group)
 			gui.menu_fg_pixel = i;
@@ -7835,7 +7835,7 @@ do_highlight(
 		if (!init)
 		    HL_TABLE()[idx].sg_set |= SG_GUI;
 
-# if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
 		/* In GUI guifg colors are only used when recognized */
 		i = color_name2handle(arg);
 		if (i != INVALCOLOR || STRCMP(arg, "NONE") == 0 || !USE_24BIT)
@@ -7847,7 +7847,7 @@ do_highlight(
 			HL_TABLE()[idx].sg_gui_bg_name = vim_strsave(arg);
 		    else
 			HL_TABLE()[idx].sg_gui_bg_name = NULL;
-# if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
 #  ifdef FEAT_GUI_X11
 		    if (is_menu_group)
 			gui.menu_bg_pixel = i;
@@ -8008,7 +8008,7 @@ do_highlight(
 	     * and/or "fg", which have been changed now.
 	     */
 #endif
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
 	    if (USE_24BIT)
 		highlight_gui_started();
 #endif
@@ -8080,7 +8080,7 @@ restore_cterm_colors(void)
     cterm_normal_fg_color = 0;
     cterm_normal_fg_bold = 0;
     cterm_normal_bg_color = 0;
-# ifdef FEAT_TERMTRUECOLOR
+# ifdef FEAT_TERMGUICOLORS
     cterm_normal_fg_gui_color = INVALCOLOR;
     cterm_normal_bg_gui_color = INVALCOLOR;
 # endif
@@ -8134,7 +8134,7 @@ highlight_clear(int idx)
     vim_free(HL_TABLE()[idx].sg_gui_sp_name);
     HL_TABLE()[idx].sg_gui_sp_name = NULL;
 #endif
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
     HL_TABLE()[idx].sg_gui_fg = INVALCOLOR;
     HL_TABLE()[idx].sg_gui_bg = INVALCOLOR;
 #endif
@@ -8158,7 +8158,7 @@ highlight_clear(int idx)
 #endif
 }
 
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR) || defined(PROTO)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS) || defined(PROTO)
 /*
  * Set the normal foreground and background colors according to the "Normal"
  * highlighting group.  For X11 also set "Menu", "Scrollbar", and
@@ -8168,7 +8168,7 @@ highlight_clear(int idx)
 set_normal_colors(void)
 {
 #ifdef FEAT_GUI
-# ifdef FEAT_TERMTRUECOLOR
+# ifdef FEAT_TERMGUICOLORS
     if (gui.in_use)
 # endif
     {
@@ -8210,7 +8210,7 @@ set_normal_colors(void)
 # endif
     }
 #endif
-#ifdef FEAT_TERMTRUECOLOR
+#ifdef FEAT_TERMGUICOLORS
 # ifdef FEAT_GUI
     else
 # endif
@@ -8473,7 +8473,7 @@ hl_do_font(
 
 #endif /* FEAT_GUI */
 
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR) || defined(PROTO)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS) || defined(PROTO)
 /*
  * Return the handle for a color name.
  * Returns INVALCOLOR when failed.
@@ -8486,31 +8486,31 @@ color_name2handle(char_u *name)
 
     if (STRICMP(name, "fg") == 0 || STRICMP(name, "foreground") == 0)
     {
-#if defined(FEAT_TERMTRUECOLOR) && defined(FEAT_GUI)
+#if defined(FEAT_TERMGUICOLORS) && defined(FEAT_GUI)
 	if (gui.in_use)
 #endif
 #ifdef FEAT_GUI
 	    return gui.norm_pixel;
 #endif
-#if defined(FEAT_TERMTRUECOLOR) && defined(FEAT_GUI)
+#if defined(FEAT_TERMGUICOLORS) && defined(FEAT_GUI)
 	else
 #endif
-#ifdef FEAT_TERMTRUECOLOR
+#ifdef FEAT_TERMGUICOLORS
 	    return cterm_normal_fg_gui_color;
 #endif
     }
     if (STRICMP(name, "bg") == 0 || STRICMP(name, "background") == 0)
     {
-#if defined(FEAT_TERMTRUECOLOR) && defined(FEAT_GUI)
+#if defined(FEAT_TERMGUICOLORS) && defined(FEAT_GUI)
 	if (gui.in_use)
 #endif
 #ifdef FEAT_GUI
 	    return gui.back_pixel;
 #endif
-#if defined(FEAT_TERMTRUECOLOR) && defined(FEAT_GUI)
+#if defined(FEAT_TERMGUICOLORS) && defined(FEAT_GUI)
 	else
 #endif
-#ifdef FEAT_TERMTRUECOLOR
+#ifdef FEAT_TERMGUICOLORS
 	    return cterm_normal_bg_gui_color;
 #endif
     }
@@ -8595,7 +8595,7 @@ get_attr_entry(garray_T *table, attrentr
 						  == taep->ae_u.cterm.fg_color
 			    && aep->ae_u.cterm.bg_color
 						  == taep->ae_u.cterm.bg_color
-#ifdef FEAT_TERMTRUECOLOR
+#ifdef FEAT_TERMGUICOLORS
 			    && aep->ae_u.cterm.fg_rgb
 						    == taep->ae_u.cterm.fg_rgb
 			    && aep->ae_u.cterm.bg_rgb
@@ -8667,7 +8667,7 @@ get_attr_entry(garray_T *table, attrentr
     {
 	taep->ae_u.cterm.fg_color = aep->ae_u.cterm.fg_color;
 	taep->ae_u.cterm.bg_color = aep->ae_u.cterm.bg_color;
-#ifdef FEAT_TERMTRUECOLOR
+#ifdef FEAT_TERMGUICOLORS
 	taep->ae_u.cterm.fg_rgb = aep->ae_u.cterm.fg_rgb;
 	taep->ae_u.cterm.bg_rgb = aep->ae_u.cterm.bg_rgb;
 #endif
@@ -8787,7 +8787,7 @@ hl_combine_attr(int char_attr, int prim_
 		    new_en.ae_u.cterm.fg_color = spell_aep->ae_u.cterm.fg_color;
 		if (spell_aep->ae_u.cterm.bg_color > 0)
 		    new_en.ae_u.cterm.bg_color = spell_aep->ae_u.cterm.bg_color;
-#ifdef FEAT_TERMTRUECOLOR
+#ifdef FEAT_TERMGUICOLORS
 		if (spell_aep->ae_u.cterm.fg_rgb != (long_u)INVALCOLOR)
 		    new_en.ae_u.cterm.fg_rgb = spell_aep->ae_u.cterm.fg_rgb;
 		if (spell_aep->ae_u.cterm.bg_rgb != (long_u)INVALCOLOR)
@@ -9056,7 +9056,7 @@ highlight_color(
 	return NULL;
     if (modec == 'g')
     {
-# if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
 #  ifdef FEAT_GUI
 	/* return font name */
 	if (font)
@@ -9115,7 +9115,7 @@ highlight_color(
 #endif
 
 #if (defined(FEAT_SYN_HL) \
-	    && (defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)) \
+	    && (defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)) \
 	&& defined(FEAT_PRINTER)) || defined(PROTO)
 /*
  * Return color name of highlight group "id" as RGB value.
@@ -9255,7 +9255,7 @@ set_hl_attr(
      * highlighting attributes, need to allocate an attr number.
      */
     if (sgp->sg_cterm_fg == 0 && sgp->sg_cterm_bg == 0
-# ifdef FEAT_TERMTRUECOLOR
+# ifdef FEAT_TERMGUICOLORS
 	    && sgp->sg_gui_fg == INVALCOLOR
 	    && sgp->sg_gui_bg == INVALCOLOR
 # endif
@@ -9266,7 +9266,7 @@ set_hl_attr(
 	at_en.ae_attr = sgp->sg_cterm;
 	at_en.ae_u.cterm.fg_color = sgp->sg_cterm_fg;
 	at_en.ae_u.cterm.bg_color = sgp->sg_cterm_bg;
-# ifdef FEAT_TERMTRUECOLOR
+# ifdef FEAT_TERMGUICOLORS
 	at_en.ae_u.cterm.fg_rgb = GUI_MCH_GET_RGB(sgp->sg_gui_fg);
 	at_en.ae_u.cterm.bg_rgb = GUI_MCH_GET_RGB(sgp->sg_gui_bg);
 # endif
@@ -9420,7 +9420,7 @@ syn_add_group(char_u *name)
     vim_memset(&(HL_TABLE()[highlight_ga.ga_len]), 0, sizeof(struct hl_group));
     HL_TABLE()[highlight_ga.ga_len].sg_name = name;
     HL_TABLE()[highlight_ga.ga_len].sg_name_u = vim_strsave_up(name);
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
     HL_TABLE()[highlight_ga.ga_len].sg_gui_bg = INVALCOLOR;
     HL_TABLE()[highlight_ga.ga_len].sg_gui_fg = INVALCOLOR;
 # ifdef FEAT_GUI
@@ -9518,7 +9518,7 @@ syn_get_final_id(int hl_id)
     return hl_id;
 }
 
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
 /*
  * Call this function just after the GUI has started.
  * It finds the font and color handles for the highlighting groups.
@@ -9529,8 +9529,8 @@ highlight_gui_started(void)
     int	    idx;
 
     /* First get the colors from the "Normal" and "Menu" group, if set */
-# if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR)
-#  ifdef FEAT_TERMTRUECOLOR
+# if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS)
+#  ifdef FEAT_TERMGUICOLORS
     if (USE_24BIT)
 #  endif
 	set_normal_colors();
@@ -9551,7 +9551,7 @@ gui_do_one_color(
     int		didit = FALSE;
 
 # ifdef FEAT_GUI
-#  ifdef FEAT_TERMTRUECOLOR
+#  ifdef FEAT_TERMGUICOLORS
     if (gui.in_use)
 #  endif
 	if (HL_TABLE()[idx].sg_font_name != NULL)
diff --git a/src/term.c b/src/term.c
--- a/src/term.c
+++ b/src/term.c
@@ -77,7 +77,7 @@ struct builtin_term
 static struct builtin_term *find_builtin_term(char_u *name);
 static void parse_builtin_tcap(char_u *s);
 static void term_color(char_u *s, int n);
-#ifdef FEAT_TERMTRUECOLOR
+#ifdef FEAT_TERMGUICOLORS
 static void term_rgb_color(char_u *s, long_u rgb);
 #endif
 static void gather_termleader(void);
@@ -859,7 +859,7 @@ static struct builtin_term builtin_termc
     {(int)KS_CRV,	IF_EB("\033[>c", ESC_STR "[>c")},
     {(int)KS_RBG,	IF_EB("\033]11;?\007", ESC_STR "]11;?\007")},
     {(int)KS_U7,	IF_EB("\033[6n", ESC_STR "[6n")},
-#  ifdef FEAT_TERMTRUECOLOR
+#  ifdef FEAT_TERMGUICOLORS
     /* These are printf strings, not terminal codes. */
     {(int)KS_8F,	IF_EB("\033[38;2;%lu;%lu;%lum", ESC_STR "[38;2;%lu;%lu;%lum")},
     {(int)KS_8B,	IF_EB("\033[48;2;%lu;%lu;%lum", ESC_STR "[48;2;%lu;%lu;%lum")},
@@ -1265,21 +1265,21 @@ static struct builtin_term builtin_termc
 
 };	/* end of builtin_termcaps */
 
-#if defined(FEAT_TERMTRUECOLOR) || defined(PROTO)
+#if defined(FEAT_TERMGUICOLORS) || defined(PROTO)
     guicolor_T
-termtrue_mch_get_color(char_u *name)
+termgui_mch_get_color(char_u *name)
 {
     return gui_get_color_cmn(name);
 }
 
     guicolor_T
-termtrue_get_color(char_u *name)
+termgui_get_color(char_u *name)
 {
     guicolor_T	t;
 
     if (*name == NUL)
 	return INVALCOLOR;
-    t = termtrue_mch_get_color(name);
+    t = termgui_mch_get_color(name);
 
     if (t == INVALCOLOR)
 	EMSG2(_("E254: Cannot allocate color %s"), name);
@@ -1287,9 +1287,9 @@ termtrue_get_color(char_u *name)
 }
 
     long_u
-termtrue_mch_get_rgb(guicolor_T color)
+termgui_mch_get_rgb(guicolor_T color)
 {
-    return (long_u) color;
+    return (long_u)color;
 }
 #endif
 
@@ -2645,7 +2645,7 @@ term_color(char_u *s, int n)
 	OUT_STR(tgoto((char *)s, 0, n));
 }
 
-#if defined(FEAT_TERMTRUECOLOR) || defined(PROTO)
+#if defined(FEAT_TERMGUICOLORS) || defined(PROTO)
     void
 term_fg_rgb_color(long_u rgb)
 {
@@ -6053,7 +6053,7 @@ update_tcap(int attr)
 }
 #endif
 
-#if defined(FEAT_GUI) || defined(FEAT_TERMTRUECOLOR) || defined(PROTO)
+#if defined(FEAT_GUI) || defined(FEAT_TERMGUICOLORS) || defined(PROTO)
     static int
 hex_digit(int c)
 {
diff --git a/src/version.c b/src/version.c
--- a/src/version.c
+++ b/src/version.c
@@ -602,6 +602,11 @@ static char *(features[]) =
 #else
 	"-tcl",
 #endif
+#ifdef FEAT_TERMGUICOLORS
+	"+termguicolors",
+#else
+	"-termguicolors",
+#endif
 #if defined(UNIX) || defined(__EMX__)
 /* only Unix (or OS/2 with EMX!) can have terminfo instead of termcap */
 # ifdef TERMINFO
@@ -621,11 +626,6 @@ static char *(features[]) =
 #else
 	"-termresponse",
 #endif
-#ifdef FEAT_TERMTRUECOLOR
-	"+termtruecolor",
-#else
-	"-termtruecolor",
-#endif
 #ifdef FEAT_TEXTOBJ
 	"+textobjects",
 #else
@@ -754,6 +754,8 @@ static char *(features[]) =
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1799,
+/**/
     1798,
 /**/
     1797,
diff --git a/src/vim.h b/src/vim.h
--- a/src/vim.h
+++ b/src/vim.h
@@ -1559,21 +1559,21 @@ typedef UINT32_TYPEDEF UINT32_T;
 #define MSG_PUTS_LONG_ATTR(s, a)    msg_puts_long_attr((char_u *)(s), (a))
 
 #ifdef FEAT_GUI
-# ifdef FEAT_TERMTRUECOLOR
-#  define GUI_FUNCTION(f)	    (gui.in_use ? gui_##f : termtrue_##f)
-#  define USE_24BIT		    (gui.in_use || p_guicolors)
+# ifdef FEAT_TERMGUICOLORS
+#  define GUI_FUNCTION(f)	    (gui.in_use ? gui_##f : termgui_##f)
+#  define USE_24BIT		    (gui.in_use || p_tgc)
 # else
 #  define GUI_FUNCTION(f)	    gui_##f
 #  define USE_24BIT		    gui.in_use
 # endif
 #else
-# ifdef FEAT_TERMTRUECOLOR
-#  define GUI_FUNCTION(f)	    termtrue_##f
-#  define USE_24BIT		    p_guicolors
+# ifdef FEAT_TERMGUICOLORS
+#  define GUI_FUNCTION(f)	    termgui_##f
+#  define USE_24BIT		    p_tgc
 # endif
 #endif
-#ifdef FEAT_TERMTRUECOLOR
-# define IS_CTERM		    (t_colors > 1 || p_guicolors)
+#ifdef FEAT_TERMGUICOLORS
+# define IS_CTERM		    (t_colors > 1 || p_tgc)
 #else
 # define IS_CTERM		    (t_colors > 1)
 #endif