patch 9.1.1834: MS-Windows: not possible to highlight the title bar

Problem:  MS-Windows: not possible to highlight the title bar
Solution: Make the title/caption bar configurable by introducing the
          'go-C' option value which allows to highlight it using the
          TitleBar and TitleBarNC highlighting groups (Mao-Yining).

Introduce titlebar color customization for Windows 11 GUI through
highlight groups and new 'guioptions' flag:

- Add 'C' flag to enable titlebar color customization (opt-in)
- New highlight groups: TitleBar (active) and TitleBarNC (inactive)
- Uses DWMWA_CAPTION_COLOR and DWMWA_TEXT_COLOR DWM attributes
- Dynamically loads dwmapi.dll for Windows 11 compatibility
- Defaults to system colors when set to NONE or feature disabled

closes: #18449

Signed-off-by: Mao-Yining <[email protected]>
Signed-off-by: Christian Brabandt <[email protected]>

Author: mao-yining

ci/hlgroups.ignore

@@ -51,6 +51,8 @@ TabLineFill
 TabLineSel
 Terminal
 Title
+TitleBar
+TitleBarNC
 TOhtmlProgress
 TOhtml-progress-color
 ToolbarButton

runtime/doc/gui_w32.txt

@@ -1,4 +1,4 @@
-*gui_w32.txt*   For Vim version 9.1.  Last change: 2025 Aug 06
+*gui_w32.txt*   For Vim version 9.1.  Last change: 2025 Oct 07
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -488,4 +488,20 @@ VIM_KEYCODE_TRANS_STRATEGY can be set to the desired value ("experimental" or
         set VIM_KEYCODE_TRANS_STRATEGY=experimental
         gvim.exe
 <
+
+Title Bar						*gui-w32-title-bar*
+
+Starting with Windows 11, you can customize the gVim title bar (also known as
+the caption bar) by enabling the |'go-C'| option.
+
+Once enabled, the appearance is controlled by two highlighting groups:
+1. |hl-TitleBar|   -- Sets the color of the title bar for the active window.
+2. |hl-TitleBarNC| -- Sets the color of the title bar for inactive windows.
+
+To use the system's default title bar colors, set highlighting groups to
+`NONE`: >
+
+	hi TitleBar guibg=NONE guifg=NONE
+	hi TitleBarNC guibg=NONE guifg=NONE
+
  vim:tw=78:sw=4:ts=8:noet:ft=help:norl:

runtime/doc/options.txt

@@ -1,4 +1,4 @@
-*options.txt*	For Vim version 9.1.  Last change: 2025 Oct 03
+*options.txt*	For Vim version 9.1.  Last change: 2025 Oct 07
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -4487,6 +4487,10 @@ A jump table for the options with a short description can be found at |Q_op|.
 								*'go-c'*
 	  'c'	Use console dialogs instead of popup dialogs for simple
 		choices.
+								*'go-C'*
+	  'C'	Use |hl-TitleBar| and |hl-TitleBarNC| if available.
+		Currently only works for MS-Window GUI.
+		See |gui-w32-title-bar| for details.
 								*'go-d'*
 	  'd'	Use dark theme variant if available.  Currently only works for
 		GTK+ GUI.

runtime/doc/syntax.txt

@@ -6092,6 +6092,16 @@ TabPanelSel	TabPanel, active tab page label.
 Terminal	|terminal| window (see |terminal-size-color|).
 							*hl-Title*
 Title		Titles for output from ":set all", ":autocmd" etc.
+							*hl-TitleBar*
+TitleBar	Title bar for the active Gui's window.
+		This feature is supported only in the MS-Windows GUI.
+		See |gui-w32-title-bar| for details
+		Only the `guibg` and `guifg` highlight arguments are effective.
+							*hl-TitleBarNC*
+TitleBarNC	Title bar for inactive Gui's window.
+		This feature is supported only in the MS-Windows GUI.
+		See |gui-w32-title-bar| for details
+		Only the `guibg` and `guifg` highlight arguments are effective.
 							*hl-Visual*
 Visual		Visual mode selection.
 							*hl-VisualNOS*

runtime/doc/tags

@@ -355,6 +355,7 @@ $quote	eval.txt	/*$quote*
 'go'	options.txt	/*'go'*
 'go-!'	options.txt	/*'go-!'*
 'go-A'	options.txt	/*'go-A'*
+'go-C'	options.txt	/*'go-C'*
 'go-F'	options.txt	/*'go-F'*
 'go-L'	options.txt	/*'go-L'*
 'go-M'	options.txt	/*'go-M'*
@@ -8224,6 +8225,7 @@ gui-w32-cmdargs	gui_w32.txt	/*gui-w32-cmdargs*
 gui-w32-dialogs	gui_w32.txt	/*gui-w32-dialogs*
 gui-w32-printing	gui_w32.txt	/*gui-w32-printing*
 gui-w32-start	gui_w32.txt	/*gui-w32-start*
+gui-w32-title-bar	gui_w32.txt	/*gui-w32-title-bar*
 gui-w32-various	gui_w32.txt	/*gui-w32-various*
 gui-w32-windowid	gui_w32.txt	/*gui-w32-windowid*
 gui-w32s	os_win32.txt	/*gui-w32s*
@@ -8417,6 +8419,8 @@ hl-TabPanelFill	syntax.txt	/*hl-TabPanelFill*
 hl-TabPanelSel	syntax.txt	/*hl-TabPanelSel*
 hl-Terminal	syntax.txt	/*hl-Terminal*
 hl-Title	syntax.txt	/*hl-Title*
+hl-TitleBar	syntax.txt	/*hl-TitleBar*
+hl-TitleBarNC	syntax.txt	/*hl-TitleBarNC*
 hl-ToolbarButton	gui.txt	/*hl-ToolbarButton*
 hl-ToolbarLine	gui.txt	/*hl-ToolbarLine*
 hl-Tooltip	syntax.txt	/*hl-Tooltip*

runtime/doc/version9.txt

@@ -1,4 +1,4 @@
-*version9.txt*  For Vim version 9.1.  Last change: 2025 Oct 05
+*version9.txt*  For Vim version 9.1.  Last change: 2025 Oct 07
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -41715,6 +41715,8 @@ Options: ~
 - Setting 'nowrap' in a modeline could cause long lines to be hidden
   off-screen.  To make this visible, the listchars "extend" suboption is set
   to ">" by default, indicating text that extends beyond the window width.
+- 'guioptions': New value |'go-C'| to style the title/caption bar on Windows 11
+  (see also the below platform specific change).
 
 Ex commands: ~
 - allow to specify a priority when defining a new sign |:sign-define|
@@ -41750,6 +41752,8 @@ Plugins~
 Platform specific ~
 - MS-Winodws: Paths like "\Windows" and "/Windows" are now considered to be
   absolute paths (to the current drive) and no longer relative.
+- MS-Windows: The title bar follows the |hl-TitleBar| and |hl-TitleBarNC|
+  highlighting group |gui-w32-title-bar|.
 - macOS: increase default scheduler priority to TASK_DEFAULT_APPLICATION.
 
 Others: ~
@@ -41841,6 +41845,8 @@ Highlighting: ~
 |hl-TabPanel|		|tabpanel|: not active tab page label
 |hl-TabPanelFill|	|tabpanel|: filler space
 |hl-TabPanelSel|	|tabpanel|: active tab page label
+|hl-TitleBarNC|		Configure the inactive title/bar on MS-Windows 11
+|hl-TitleBar|		Configure the active title/bar on MS-Windows 11
 
 Commands: ~
 

runtime/syntax/vim.vim

@@ -2,7 +2,7 @@
 " Language:	   Vim script
 " Maintainer:	   Hirohito Higashi <h.east.727 ATMARK gmail.com>
 "	   Doug Kearns <[email protected]>
-" Last Change:	   2025 Sep 27
+" Last Change:	   2025 Oct 07
 " Former Maintainer: Charles E. Campbell
 
 " DO NOT CHANGE DIRECTLY.
@@ -34,8 +34,8 @@ syn cluster vimCommentGroup	contains=vimTodo,@Spell
 
 " regular vim commands {{{2
 " GEN_SYN_VIM: vimCommand normal, START_STR='syn keyword vimCommand contained', END_STR='nextgroup=vimBang'
-syn keyword vimCommand contained al[l] ar[gs] arga[dd] argd[elete] argdo argded[upe] arge[dit] argg[lobal] argl[ocal] argu[ment] as[cii] b[uffer] bN[ext] ba[ll] bad[d] balt bd[elete] bf[irst] bl[ast] bm[odified] bn[ext] bp[revious] br[ewind] brea[k] breaka[dd] breakd[el] breakl[ist] bro[wse] buffers bufd[o] bun[load] bw[ipeout] c[hange] cN[ext] cNf[ile] cabo[ve] cad[dbuffer] cadde[xpr] caddf[ile] caf[ter] cb[uffer] cbe[fore] cbel[ow] cbo[ttom] cc ccl[ose] cd cdo ce[nter] cex[pr] cf[ile] cfd[o] cfir[st] cg[etfile] cgetb[uffer] cgete[xpr] changes che[ckpath] checkt[ime] chi[story] cl[ist] clip[reset] cla[st] clo[se] cle[arjumps] cn[ext] cnew[er] cnf[ile] col[der] colo[rscheme] com[mand] comc[lear] comp[iler] con[tinue] conf[irm] cons[t] cope[n] cp[revious] cpf[ile] nextgroup=vimBang
-syn keyword vimCommand contained cq[uit] cr[ewind] cs[cope] cst[ag] cw[indow] delm[arks] deb[ug] defc[ompile] di[splay] dif[fupdate] diffg[et] diffo[ff] diffp[atch] diffpu[t] diffs[plit] difft[his] dig[raphs] disa[ssemble] dj[ump] dli[st] dr[op] ds[earch] dsp[lit] e[dit] ea[rlier] em[enu] endfo[r] endt[ry] endw[hile] ene[w] ex exi[t] exu[sage] f[ile] files fin[d] fina[lly] fini[sh] fir[st] fix[del] fo[ld] foldc[lose] foldd[oopen] folddoc[losed] foldo[pen] g[lobal] go[to] gu[i] gv[im] h[elp] helpc[lose] helpf[ind] helpt[ags] ha[rdcopy] hi[ghlight] his[tory] ij[ump] il[ist] int[ro] ip[ut] is[earch] isp[lit] ju[mps] l[ist] lN[ext] lNf[ile] la[st] lab[ove] lan[guage] lad[dexpr] laddb[uffer] laddf[ile] laf[ter] lat[er] lb[uffer] lbe[fore] lbel[ow] lbo[ttom] lc[d] lch[dir] nextgroup=vimBang
+syn keyword vimCommand contained al[l] ar[gs] arga[dd] argd[elete] argdo argded[upe] arge[dit] argg[lobal] argl[ocal] argu[ment] as[cii] b[uffer] bN[ext] ba[ll] bad[d] balt bd[elete] bf[irst] bl[ast] bm[odified] bn[ext] bp[revious] br[ewind] brea[k] breaka[dd] breakd[el] breakl[ist] bro[wse] buffers bufd[o] bun[load] bw[ipeout] c[hange] cN[ext] cNf[ile] cabo[ve] cad[dbuffer] cadde[xpr] caddf[ile] caf[ter] cb[uffer] cbe[fore] cbel[ow] cbo[ttom] cc ccl[ose] cd cdo ce[nter] cex[pr] cf[ile] cfd[o] cfir[st] cg[etfile] cgetb[uffer] cgete[xpr] changes che[ckpath] checkt[ime] chi[story] cl[ist] clip[reset] cla[st] clo[se] cle[arjumps] cn[ext] cnew[er] cnf[ile] col[der] colo[rscheme] comc[lear] comp[iler] con[tinue] conf[irm] cons[t] cope[n] cp[revious] cpf[ile] cq[uit] nextgroup=vimBang
+syn keyword vimCommand contained cr[ewind] cs[cope] cst[ag] cw[indow] delm[arks] deb[ug] defc[ompile] di[splay] dif[fupdate] diffg[et] diffo[ff] diffp[atch] diffpu[t] diffs[plit] difft[his] dig[raphs] disa[ssemble] dj[ump] dli[st] dr[op] ds[earch] dsp[lit] e[dit] ea[rlier] em[enu] endfo[r] endt[ry] endw[hile] ene[w] ex exi[t] exu[sage] f[ile] files fin[d] fina[lly] fini[sh] fir[st] fix[del] fo[ld] foldc[lose] foldd[oopen] folddoc[losed] foldo[pen] g[lobal] go[to] gu[i] gv[im] h[elp] helpc[lose] helpf[ind] helpt[ags] ha[rdcopy] hi[ghlight] his[tory] ij[ump] il[ist] int[ro] ip[ut] is[earch] isp[lit] ju[mps] l[ist] lN[ext] lNf[ile] la[st] lab[ove] lan[guage] lad[dexpr] laddb[uffer] laddf[ile] laf[ter] lat[er] lb[uffer] lbe[fore] lbel[ow] lbo[ttom] lc[d] lch[dir] nextgroup=vimBang
 syn keyword vimCommand contained lcl[ose] lcs[cope] ld[o] le[ft] lex[pr] lf[ile] lfd[o] lfir[st] lg[etfile] lgetb[uffer] lgete[xpr] lgr[ep] lgrepa[dd] lhi[story] ll lla[st] lli[st] lmak[e] lne[xt] lnew[er] lnf[ile] lo[adview] lockv[ar] lol[der] lop[en] lp[revious] lpf[ile] lr[ewind] lt[ag] lw[indow] ls m[ove] marks menut[ranslate] mes[sages] mk[exrc] mks[ession] mksp[ell] mkv[imrc] mkvie[w] mod[e] n[ext] nb[key] nbc[lose] nbs[tart] noh[lsearch] nu[mber] o[pen] ol[dfiles] on[ly] opt[ions] ow[nsyntax] p[rint] pa[ckadd] packl[oadall] pb[uffer] pc[lose] ped[it] po[p] pp[op] pre[serve] prev[ious] pro[mptfind] promptr[epl] ps[earch] pt[ag] ptN[ext] ptf[irst] ptj[ump] ptl[ast] ptn[ext] ptp[revious] ptr[ewind] pts[elect] pu[t] pw[d] q[uit] quita[ll] qa[ll] r[ead] rec[over] nextgroup=vimBang
 syn keyword vimCommand contained red[o] redr[aw] redraws[tatus] redrawt[abline] redrawtabp[anel] reg[isters] res[ize] ret[ab] rew[ind] ri[ght] ru[ntime] rub[y] rubyd[o] rubyf[ile] rund[o] rv[iminfo] sN[ext] sa[rgument] sal[l] sav[eas] sb[uffer] sbN[ext] sba[ll] sbf[irst] sbl[ast] sbm[odified] sbn[ext] sbp[revious] sbr[ewind] scr[iptnames] scripte[ncoding] scriptv[ersion] scs[cope] setf[iletype] sf[ind] sfir[st] sh[ell] sim[alt] sig[n] sla[st] sn[ext] so[urce] spe[llgood] spelld[ump] spelli[nfo] spellr[epall] spellra[re] spellu[ndo] spellw[rong] spr[evious] sre[wind] st[op] sta[g] star[tinsert] startg[replace] startr[eplace] stopi[nsert] stj[ump] sts[elect] sun[hide] sus[pend] sv[iew] synti[me] sync[bind] smi[le] t tN[ext] ta[g] tags tabc[lose] tabd[o] tabe[dit] nextgroup=vimBang
 syn keyword vimCommand contained tabf[ind] tabfir[st] tabm[ove] tabl[ast] tabn[ext] tabnew tabo[nly] tabp[revious] tabN[ext] tabr[ewind] tabs tc[d] tch[dir] te[aroff] tf[irst] tj[ump] tl[ast] tn[ext] tp[revious] tr[ewind] try ts[elect] u[ndo] undoj[oin] undol[ist] unh[ide] unlo[ckvar] up[date] v[global] ve[rsion] vi[sual] vie[w] viu[sage] vne[w] vs[plit] w[rite] wN[ext] wa[ll] wi[nsize] wind[o] winp[os] wl[restore] wn[ext] wp[revious] wq wqa[ll] wu[ndo] wv[iminfo] x[it] xa[ll] xr[estore] y[ank] z dl dell delel deletl deletel dp dep delp delep deletp deletep a i nextgroup=vimBang
@@ -146,8 +146,8 @@ syn keyword vimGroup contained Added Bold BoldItalic Boolean Changed Character C
 
 " Default highlighting groups {{{2
 " GEN_SYN_VIM: vimHLGroup, START_STR='syn keyword vimHLGroup contained', END_STR=''
-syn keyword vimHLGroup contained ErrorMsg IncSearch ModeMsg NonText StatusLine StatusLineNC EndOfBuffer VertSplit VisualNOS DiffText DiffTextAdd PmenuSbar TabLineSel TabLineFill TabPanel TabPanelSel TabPanelFill Cursor lCursor QuickFixLine CursorLineSign CursorLineFold CurSearch PmenuKind PmenuKindSel PmenuMatch PmenuMatchSel PmenuExtra PmenuExtraSel PopupSelected MessageWindow PopupNotification PreInsert Normal Directory LineNr CursorLineNr MoreMsg Question Search SpellBad SpellCap SpellRare SpellLocal PmenuThumb Pmenu PmenuSel SpecialKey Title WarningMsg WildMenu Folded FoldColumn SignColumn Visual DiffAdd DiffChange DiffDelete TabLine CursorColumn CursorLine ColorColumn MatchParen StatusLineTerm StatusLineTermNC ToolbarLine ToolbarButton Menu Tooltip Scrollbar
-syn keyword vimHLGroup contained CursorIM ComplMatchIns LineNrAbove LineNrBelow MsgArea Terminal User1 User2 User3 User4 User5 User6 User7 User8 User9
+syn keyword vimHLGroup contained ErrorMsg IncSearch ModeMsg NonText StatusLine StatusLineNC EndOfBuffer VertSplit VisualNOS DiffText DiffTextAdd PmenuSbar TabLineSel TabLineFill TabPanel TabPanelSel TabPanelFill Cursor lCursor TitleBar TitleBarNC QuickFixLine CursorLineSign CursorLineFold CurSearch PmenuKind PmenuKindSel PmenuMatch PmenuMatchSel PmenuExtra PmenuExtraSel PopupSelected MessageWindow PopupNotification PreInsert Normal Directory LineNr CursorLineNr MoreMsg Question Search SpellBad SpellCap SpellRare SpellLocal PmenuThumb Pmenu PmenuSel SpecialKey Title WarningMsg WildMenu Folded FoldColumn SignColumn Visual DiffAdd DiffChange DiffDelete TabLine CursorColumn CursorLine ColorColumn MatchParen StatusLineTerm StatusLineTermNC ToolbarLine ToolbarButton
+syn keyword vimHLGroup contained TitleBar TitleBarNC Menu Tooltip Scrollbar CursorIM ComplMatchIns LineNrAbove LineNrBelow MsgArea Terminal User1 User2 User3 User4 User5 User6 User7 User8 User9
 syn match vimHLGroup contained "\<Conceal\>"
 syn case match
 
@@ -1368,7 +1368,7 @@ syn region	vimEval
       \ end="\ze|"
       \ excludenl end="$"
       \ nextgroup=vimCmdSep
-      \ contains=@vimContinue,@vimExprList,vimComment,vim9Comment
+      \ contains=@vimContinue,@vimExprList,vim9Comment
       \ transparent
 
 " Filter: {{{2

src/gui.c

@@ -3491,6 +3491,10 @@ gui_init_which_components(char_u *oldval UNUSED)
 #ifdef FEAT_GUI_TABLINE
     int		using_tabline;
 #endif
+#ifdef FEAT_GUI_MSWIN
+    static int	prev_titlebar = -1;
+    int		using_titlebar = FALSE;
+#endif
 #if defined(FEAT_MENU)
     static int	prev_tearoff = -1;
     int		using_tearoff = FALSE;
@@ -3560,6 +3564,11 @@ gui_init_which_components(char_u *oldval UNUSED)
 	    case GO_GREY:
 		// make menu's have grey items, ignored here
 		break;
+#ifdef FEAT_GUI_MSWIN
+	    case GO_TITLEBAR:
+		using_titlebar = TRUE;
+		break;
+#endif
 #ifdef FEAT_TOOLBAR
 	    case GO_TOOLBAR:
 		using_toolbar = TRUE;
@@ -3581,6 +3590,14 @@ gui_init_which_components(char_u *oldval UNUSED)
     need_set_size = 0;
     fix_size = FALSE;
 
+#ifdef FEAT_GUI_MSWIN
+    if (using_titlebar != prev_titlebar)
+    {
+	gui_mch_set_titlebar_colors();
+	prev_titlebar = using_titlebar;
+    }
+#endif
+
 #ifdef FEAT_GUI_DARKTHEME
     if (using_dark_theme != prev_dark_theme)
     {
@@ -4751,6 +4768,10 @@ gui_focus_change(int in_focus)
     gui.in_focus = in_focus;
     out_flush_cursor(TRUE, FALSE);
 
+# ifdef FEAT_GUI_MSWIN
+    gui_mch_set_titlebar_colors();
+# endif
+
 # ifdef FEAT_XIM
     xim_set_focus(in_focus);
 # endif

src/gui.h

@@ -422,6 +422,11 @@ typedef struct Gui
     guicolor_T	currFgColor;	    // Current foreground text color
     guicolor_T	currBgColor;	    // Current background text color
     guicolor_T	currSpColor;	    // Current special text color
+
+    guicolor_T	title_bg_pixel;	    // window title bar color
+    guicolor_T	title_fg_pixel;	    // window title bar's text color
+    guicolor_T	titlenc_bg_pixel;   // window title bar color not current
+    guicolor_T	titlenc_fg_pixel;   // window title bar's text color not current
 #endif
 
 #ifdef FEAT_GUI_HAIKU

src/gui_w32.c

@@ -318,6 +318,14 @@ gui_mch_set_rendering_options(char_u *s)
 # define SPI_SETWHEELSCROLLCHARS	0x006D
 #endif
 
+#ifndef DWMWA_CAPTION_COLOR
+# define DWMWA_CAPTION_COLOR		35
+#endif
+
+#ifndef DWMWA_TEXT_COLOR
+# define DWMWA_TEXT_COLOR		36
+#endif
+
 #ifdef PROTO
 /*
  * Define a few things for generating prototypes.  This is just to avoid
@@ -468,6 +476,10 @@ static int (WINAPI *pGetSystemMetricsForDpi)(int, UINT) = NULL;
 static DPI_AWARENESS_CONTEXT (WINAPI *pSetThreadDpiAwarenessContext)(DPI_AWARENESS_CONTEXT dpiContext) = NULL;
 static DPI_AWARENESS (WINAPI *pGetAwarenessFromDpiAwarenessContext)(DPI_AWARENESS_CONTEXT) = NULL;
 
+static HINSTANCE hLibDwm = NULL;
+static HRESULT (WINAPI *pDwmSetWindowAttribute)(HWND, DWORD, LPCVOID, DWORD);
+static void dyn_dwm_load(void);
+
     static int WINAPI
 stubGetSystemMetricsForDpi(int nIndex, UINT dpi UNUSED)
 {
@@ -1591,6 +1603,67 @@ _TextAreaWndProc(
     }
 }
 
+    static void
+dyn_dwm_load(void)
+{
+    hLibDwm = vimLoadLib("dwmapi.dll");
+    if (hLibDwm == NULL)
+	return;
+
+    pDwmSetWindowAttribute = (HRESULT (WINAPI *)(HWND, DWORD, LPCVOID, DWORD))
+	GetProcAddress(hLibDwm, "DwmSetWindowAttribute");
+
+    if (pDwmSetWindowAttribute == NULL)
+    {
+	FreeLibrary(hLibDwm);
+	hLibDwm = NULL;
+	return;
+    }
+}
+
+extern BOOL win11_or_later; // this is in os_win32.c
+
+/*
+ * Set TitleBar's color. Handle hl-TitleBar and hl-TitleBarNC.
+ *
+ * Only enabled when 'guioptions' has 'C'.
+ * if "TitleBar guibg=NONE guifg=NONE" reset the window back to using the
+ * system's default behavior for the border color.
+ */
+    void
+gui_mch_set_titlebar_colors(void)
+{
+    if (pDwmSetWindowAttribute == NULL || !win11_or_later)
+	return;
+
+    guicolor_T captionColor = 0xFFFFFFFF;
+    guicolor_T textColor = 0xFFFFFFFF;
+
+    if (vim_strchr(p_go, GO_TITLEBAR) != NULL)
+    {
+	if (gui.in_focus)
+	{
+	    captionColor = gui.title_bg_pixel;
+	    textColor = gui.title_fg_pixel;
+	}
+	else
+	{
+	    captionColor = gui.titlenc_bg_pixel;
+	    textColor = gui.titlenc_fg_pixel;
+	}
+
+	if (captionColor == INVALCOLOR)
+	    captionColor = 0xFFFFFFFF;
+	if (textColor == INVALCOLOR)
+	    textColor = 0xFFFFFFFF;
+    }
+
+    pDwmSetWindowAttribute(s_hwnd, DWMWA_CAPTION_COLOR,
+	    &captionColor, sizeof(captionColor));
+    pDwmSetWindowAttribute(s_hwnd, DWMWA_TEXT_COLOR,
+	    &textColor, sizeof(textColor));
+}
+
 /*
  * Called when the foreground or background color has been changed.
  */
@@ -5636,6 +5709,8 @@ gui_mch_init(void)
 
     load_dpi_func();
 
+    dyn_dwm_load();
+
     s_dpi = pGetDpiForSystem();
     update_scrollbar_size();