On Debian XFCE the most common locations for storing .desktop entries are:
In Debian with XFCE, theme files for the graphical interface are stored in system-wide locations.
GTK Themes: /usr/share/themes Icon Themes: /usr/share/icons Window Manager (xfwm4) Themes: /usr/share/themes
GTK Themes [modern]: ~/.local/share/themes GTK Themes [legacy]: ~/.themes Icon Themes: ~/.local/share/icons or ~/.icons Window Manager (xfwm4) Themes: ~/.local/share/themes/
Download: the theme file from a source like xfce-look.org. Extract: the theme's downloaded archive. Copy: the extracted theme folder (which contains folders like gtk-3.0 for GTK themes or xfwm4 for window manager themes) into one of the user-specific directories mentioned above, such as ~/.local/share/themes/ for GTK/window themes or ~/.local/share/icons/ for icon themes. Select: the new theme by opening Menu > Settings > Appearance and choosing your theme from the Style or Icons tabs.
Select an explicit theme for an application:
env GTK_THEME=Adwaita:dark simple-scan env GTK_THEME=Nordic-darker simple-scan env GTK_THEME=Shades-of-gray-Orange simple-scan
env GTK2_RC_FILES="/usr/share/themes/Ambiance/gtk-2.0/gtkrc" firefox
Newer versions of firefox use GTK3. Another way to overrule default thema from within Firefox:
In Firefox URL bar enter about:config. 1. Create new String value with name widget.content.gtk-theme-override (Right click > new > String) 2. Set value to Adwaita:light (if your distribution does not use GNOME desktop, you should use a name of light GTK theme which is installed on your PC) 3. Restart browser
Login page is created by lightdm. Modify styling by doing:
# nano /etc/lightdm/lightdm-gtk-greeter.conf -------------------------------------------- Modify the following lines: theme-name=Adwaita-dark font-name=Sans Regular 11 xft-antialias=true
To change the icon appearance on the desktop, to:
- Show multi line icon text labels
- Reduce the space between icon image and text
- Change the distance between icons
Edit the gtk-3.0/gtk.css file of the theme and add the following lines:
$ nano /.local/share/themes/Shades-of-gray-Orange/gtk-3.0/gtk.css
-----------------------------------------------------------------
XfdesktopIconView.view {
-XfdesktopIconView-ellipsize-icon-labels: 0; /* Allow multi-line text wrapping without truncation */
-XfdesktopIconView-cell-padding: -4; /* Keep cell padding non-negative so bounding boxes do not bleed */
-XfdesktopIconView-cell-text-width-proportion: 2.5; /* Tighten vertical space specifically between the icon image and the text label */
}
XfdesktopIconView.view .label {
background: transparent;
}
To restart the XFCE, execute:
$ pkill xfdesktop && xfdesktop &
To start inspector window:
$ pkill xfdesktop && GTK_DEBUG=interactive xfdesktop