Back to black

For Ubuntu 17.10 & GDM 3.26.2

Steps

  1. Dark Theme (i.e., Ark-Dark)
  2. Wallpaper & Lockscreen
  3. Ubuntu Start/Shutdown screen (w/ ubuntu logo)
  4. Grub
  5. GDM Login Screen

Dark Theme (i.e., Ark-Dark)

  1. install arc-theme

    sudo apt install arc-theme

  2. set theme

    gsettings set org.gnome.desktop.interface gtk-theme 'Arc-Dark'

Wallpaper & Lockscreen

  1. Copy image file

    DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd )"

    sudo cp <wallpaper_1920x1080.png> /usr/share/backgrounds

  2. desktop wallpaper

    gsettings set org.gnome.desktop.background picture-uri 'file:///usr/share/backgrounds/<wallpaper_1920x1080.png>'

  3. lock screen

    gsettings set org.gnome.desktop.screensaver picture-uri 'file:///usr/share/backgrounds/<wallpaper_1920x1080.png>'

Ubuntu Start/Shutdown screen (w/ ubuntu logo)

  1. Edit script

    xhost +local: && sudo nano /usr/share/plymouth/themes/ubuntu-logo/ubuntu-logo.script

  2. Change from

    # Window.SetBackgroundTopColor (0.16, 0.00, 0.12); # Nice colour on top of the screen fading to
    # Window.SetBackgroundBottomColor (0.16, 0.00, 0.12); # an equally nice colour on the bottom

  3. Change to

    Window.SetBackgroundTopColor (0.0, 0.00, 0.0); # Nice colour on top of the screen fading to
    Window.SetBackgroundBottomColor (0.0, 0.00, 0.0); # an equally nice colour on the bottom

  4. Update

    sudo update-initramfs -u

Grub

  1. Copy image file

    sudo cp <wallpaper_1920x1080.png> /boot/grub

  2. comment out problematic line

    sudo sed -i "/GRUB_HIDDEN_TIMEOUT=0/ s/^/# /" /etc/default/grub

  3. update /boot/grub/grub.cfg

    sudo update-grub

  4. Notes: sudo nano /etc/default/grub

    • /etc/default/grub provides GRUB_HIDDEN_TIMEOUT and GRUB_HIDDEN_TIMEOUT_QUIET. Running sudo update-grub gives following warning:

      Warning: Setting GRUB_TIMEOUT to a non-zero value whenGRUB_HIDDEN_TIMEOUT is set is no longer supported.

      To see custom grub wallpaper, instead of black screen, cannot have both GRUB_HIDDEN_TIMEOUT and GRUB_HIDDEN_TIMEOUT_QUIET. Commenting out one or the other will permit the custom wallpape to be displayed.

    • Fix black splash screen in 17.10 by commenting out one of the following two lines:

      • GRUB_HIDDEN_TIMEOUT=0 # comment out this line (to show both splash screen and grub menu)
      • GRUB_HIDDEN_TIMEOUT_QUIET=true

    • erify update-grub correctly updated splash screen image (search for image filename)

      cat /boot/grub/grub.cfg

GDM Login Screen

extract gresource, replace noise-texture.png, rebuild gresource, copy .gresource into /usr/share/gnome-shell/

  1. gresource extractor

  2. Instructions to update GDM Login Screen

    1. download the scripts on the DevPy GitHub: devpytech/scripts/gresource-extract

    2. run ./extract.sh to extract your current theme to the "theme" folder in the same folder as the extract script

    3. edit ./theme/gnome-shell.css (change #lockDialogGroup)

      background: #000000 url(resource:///org/gnome/shell/theme/noise-texture.png);

    4. copy background image to ./theme/noise-texture.png (i.e., use same name)

    5. run ./build.sh from DevPy's GitHub to create .gresource file in the theme folder

    6. sudo mv ./theme/gnome-shell-theme.gresource /usr/share/gnome-shell/gnome-shell-theme.gresource

  1. Notes

    • Change from:

      lockDialogGroup {
      background: #2c001e url(resource:///org/gnome/shell/theme/noise-texture.png);
      background-repeat: repeat; }

    • purple (#2c001e) -> black (#000000)

    • Change to:

      lockDialogGroup {
      background: #000000 url(resource:///org/gnome/shell/theme/noise-texture.png);
      background-repeat: repeat; }

Ubuntu 17.10 & GDM 3.26.2: Back to Black