Hi, 1. I start emacs with "emacs -Q" 2. I open up M-x customize-face[RET] default[RET] 3. I set the background to #151515, foreground to #ffffff, and "click" "Apply" 4. M-x find-file[RET] ~/text.bar[RET] 5. I insert into the file some combination of empty lines, lines containing text, and lines containing hard tabs and text. 6. The result can be seen in the screenshot attached. Here is the info from report-emacs-bug: In GNU Emacs 24.3.50.1 (i686-pc-linux-gnu, GTK+ Version 3.8.7) of 2014-01-08 on the_computer Bzr revision: bzg@gnu.org-20140108173931-34fk1w63026lf7d9 Windowing system distributor `The X.Org Foundation', version 11.0.11404000 System Description: Gentoo Base System release 2.2 Configured using: `configure --prefix=/usr --build=i686-pc-linux-gnu --host=i686-pc-linux-gnu --mandir=/usr/share/man --infodir=/usr/share/info --datadir=/usr/share --sysconfdir=/etc --localstatedir=/var/lib --disable-silent-rules --disable-dependency-tracking --program-suffix=-emacs-24-vcs --infodir=/usr/share/info/emacs-24-vcs --enable-locallisppath=/etc/emacs:/usr/share/emacs/site-lisp --with-gameuser=games --without-compress-install --with-file-notification=inotify --enable-acl --with-dbus --with-gnutls --without-gpm --without-hesiod --without-kerberos --without-kerberos5 --without-xml2 --without-selinux --without-wide-int --with-zlib --with-sound=alsa --with-x --without-ns --with-gconf --without-gsettings --with-toolkit-scroll-bars --without-gif --with-jpeg --with-png --with-rsvg --without-tiff --with-xpm --without-imagemagick --with-xft --without-libotf --without-m17n-flt --with-x-toolkit=gtk3 GENTOO_PACKAGE=app-editors/emacs-vcs-24.3.9999 EBZR_BRANCH=trunk EBZR_REVNO=115920 'CFLAGS=-Os -march=prescott -pipe' CPPFLAGS= 'LDFLAGS=-Wl,-O1 -Wl,--as-needed'' Important settings: value of $LC_ALL: pl_PL.UTF8 value of $LC_CTYPE: pl_PL.UTF8 value of $LANG: pl_PL.UTF8 locale-coding-system: utf-8-unix Major mode: Fundamental Minor modes in effect: tooltip-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t line-number-mode: t transient-mark-mode: t Recent input: C-x C-f f i l e . b a r C-g M-x c u s t o m i z e - f a c e d e f a u l t C-SPC # # f 5 f f f f f C-SPC # 1 5 1 5 1 5 C-x C-f C-g C-x C-f t e x t . b a r a d s f SPC a s d f a s d f a s d f a s d f a a s d f C-x C-s M-x r e p o e r Recent messages: Creating customization items... Creating customization items ...done Resetting customization items...done Creating customization setup...done Mark set [2 times] Quit (New file) Saving file /home/jarek/text.bar... Wrote /home/jarek/text.bar Making completion list... Load-path shadows: None found. Features: (shadow sort gnus-util mail-extr emacsbug message format-spec rfc822 mml mml-sec mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util help-fns mail-prsvr mail-utils help-mode crm thingatpt cus-edit easymenu cus-start cus-load wid-edit cl-loaddefs cl-lib time-date tooltip electric uniquify ediff-hook vc-hooks lisp-float-type mwheel x-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list newcomment lisp-mode prog-mode register page menu-bar rfn-eshadow timer select scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer nadvice loaddefs button faces cus-face macroexp files text-properties overlay sha1 md5 base64 format env code-pages mule custom widget hashtable-print-readable backquote make-network-process dbusbind inotify dynamic-setting system-font-setting font-render-setting move-toolbar gtk x-toolkit x multi-tty emacs) Cheers, Jaros³aw Rzeszótko 2014/1/9 Jan Djärv : > Hello. > > Please use M-x report-emacs-bug, you still have not given us all info. > The #141414 instead of #151515 simply isn't happening here. I checked all > pixels, there are only #151515. > > If you have another combination of colors, use that. > And describe each step clearly, starting from emacs -Q. > > Thanks, > > Jan D. > > 2014-01-09 11:01, Jaros³aw Rzeszótko skrev: > >> Hi, >> >> I reproduced it now with Emacs 24.3.50.1. It's the same with emacs -Q, >> it does not change when changing the gtk+ theme, the one external >> thing I thought might maybe influence this. I am just running a new >> emacs session, using customize-face on the "default" face, setting >> background to #151515, foreground to #ffffff, and opening a file where >> some lines are empty and some lines have a bunch of tabs (I mean the >> "hard" tab character, not just a bunch of spaces) and some text in >> them. The difference is background might not be easily noticable but >> it is there. It's similar for other dark background, the tabs+text >> lines get different background than empty lines. >> >> Cheers, >> Jaros³aw Rzeszótko >> >> 2014/1/8 Jan Djärv : >>> >>> Hello. >>> >>> 2014-01-07 20:29, Jaros³aw Rzeszótko skrev: >>>> >>>> >>>> Hi, >>>> >>>> - Open up current bzr emacs --no-init, without any .Xresources, using >>>> gtk+3 >>>> >>>> - Customize default face to background #151515 >>>> >>>> - Open a new text file >>>> >>>> - Insert a few empty lines >>>> >>>> - Insert a few lines starting with a few tabs and some text >>>> >>>> - The lines without text get a #141414 background, only the lines with >>>> text get #151515, on a good display there are noticeable "stripes" >>>> >>>> Pretty strange... >>> >>> >>> >>> I can't reproduce this. Can you please include the information from >>> report-emacs-bug? You don't mention the Emacs version. >>> Also, does this happen with -Q? >>> #151515 is pretty dark, so are you using the default foreground black? >>> Texts are almost unreadable this way. So I suspect you are not running >>> vanilla Emacs, but have some customizations. >>> >>> Jan D. >>> >>> >