An adaptive Gtk+ theme based on Material Design Guidelines. Lots of elements were forked from Flat-Plat at the start.

Adapta:

• Light/Dark variant Gtk+ 3.20/3.18 theme
• Light/Dark variant Budgie-Desktop theme
• Light variant Gtk+ 2.0 theme
• Light variant Gnome-Shell theme
• Light variant Cinnamon theme

Adapta-Nokto:

• Light/Dark variant Gtk+ 3.20/3.18 theme
• Light/Dark variant Budgie-Desktop theme
• Dark variant Gtk+ 2.0 theme
• Dark variant Gnome-Shell theme
• Dark variant Cinnamon theme

Note: Both also includes common GNOME-Flashback, Unity7 and XFce4 theming.

Adapta supports Gtk+ 3.20.x and 3.18.x

* Gtk+-3.0             >= 3.20.1  (or  3.18.9)
* Gtk+-2.0             >= 2.24.30
* gtk2-engines-pixbuf  >= 2.24.30
* gtk2-engines-murrine >= 0.98.1

* GNOME           >= 3.20 (or 3.18)
* GNOME-Flashback >= 3.20.1 (or 3.18.2)
* Budgie-Desktop  >= 10.2.5
* Cinnamon        >= 3.0.1 (or 2.8.6)
* XFce4           >= 4.12.2

Note: Unity7 support will be dropped in future.

• Mate
• Pantheon

1. Run

sudo apt-add-repository ppa:tista/adapta -y
sudo apt update
sudo apt install adapta-gtk-theme

2. select Adapta or Adapta-Nokto via proper tools.

Note:

• Adapta-Nokto is for dark variant theming:

  • Adapta + global dark theme = off make all light variant.
  • Adapta + global dark theme = on make dark variant Gtk+3 and light variant Gtk+2.
  • Adapta-Nokto + global dark theme = off make light variant Gtk+3 and dark variant Gtk+2.
  • Adapta-Nokto + global dark theme = on make dark variant.

• For Gtk+ 3.18.x users, there's no need to upgrade Gnome-Tweak-Tool to 3.20.0 since Adapta revived gtk-3.0 directory.

• In Xeinal, Gtk+ 3.21.x support is disabled (Yakkety package enabled it as default though).

• When updating package, Adapta automatically does cleaning up pre-installed directories.

• In Yakkety, Unity7 support was dropped.

1. If previous version was installed/existed, remove them at first.

sudo rm -rf /usr/share/themes/{Adapta,Adapta-Nokto}
rm -rf ~/.local/share/themes/{Adapta,Adapta-Nokto}
rm -rf ~/.themes/{Adapta,Adapta-Nokto}

2. Check build-requirements: Today Adapta bundles neither pre-generated stylesheets nor PNG images. So users and/or contirbutors should generate proper CSSs and PNGs at build-time.

* autoconf
* automake
* inkscape
* libglib-2.0-dev (glib2)         >= 2.48.0
* libxml2-utils (libxml2)
* pkg-config (pkgconfig)
* ruby-bundler (rubygem-bundler)  >= 1.11
* ruby-sass (rubygem-sass)        >= 3.4.21

Note:

• Adapta employs Gem generator for SASS/SCSS via bundle and sass.
• Adapta uses inkscape to generate installable PNG files.
• Adapta uses glib-compile-resources to compile gresource file for Gnome-Shell.

3. Build and install system-wide:

./autogen.sh
make
sudo make install

Note:

• Default prefix is /usr.
• Adapta-Nokto dark variant is installed as default.
• make generates proper CSSs and PNGs to be installed. And it will take about 5min to 15min to build, for example, Ubuntu's build-server actually does 10min...
• sudo make install installs multiple versioned theme and Gtk+ automatically selects proper versioned one when running.

4. If users want to speed up with concurrency-build, please pass this specific options to autogen.sh:

--enable-parallel       enable parallel-build support

Note:

• This feature requires GNU parallel, so please add parallel to build-requirements. Parallel can execute multiple scripts and binaries to be suitable for multi-threading. Especially it could shorten the rendering-time via Inkscape and generation-time via sass.
• -jN option to be passed to GNU make is surely usable though, but Adapta employes parallel meanwhile...
• This feature should not be applied when packaging on remote/shared build-servers.

5. If users want to disable some DE supports, please pass these specific options to autogen.sh:

--disable-cinnamon      disable cinnamon support
--disable-flashback     disable flashback support
--disable-unity         disable unity support
--disable-xfce          disable xfce support

Note:

• Installer installs GNOME/Budgie-Desktop support even if all of options above were applied.
• Cinnamon/Unity support hooks metacity-1 directory even if GNOME-Flashback support was disabled.

6. If users want to enable next Gtk+ release support, please pass this option:

--enable-gtk_next       enable Gtk+ 3.21.x support

Note:

• As default, Gtk+ 3.21.x support is disabled.

7. If users want to change default 5 Key-Colors, please pass these options:

--with-selection_color        Primary color for 'selected-items' (Default: #00BCD4 = Cyan500)
--with-second_selection_color Primary color for 'select' effects (Default: #4DD0E1 = Cyan300)
--with-accent_color           Secondary color for notifications and OSDs (Default: #4DB6AC = Teal300)
--with-suggestion_color       Secondary color for 'suggested' buttons (Default: #009688 = Teal500)
--with-destruction_color      Tertiary color for 'destructive' buttons (Default: #FF5252 = RedA200)

Note:

• Color-codes are defined as # + 6HEXs (Standard RGB definitions in HTML codes). And uppercases are strongly recommended in Adapta code-base.

• Material Desing Color Palette is here: External Link

• Example) If you would like to use 'Teal500' as selection_color, try this:

  ./autogen.sh --with-selection_color=#009688 --with-second_selection_color=#4DB6AC

  This can switch to almost-Teal key colors.

• Basically selection_color and suggestion_color should be with 500 colors, and second_selection_color and accent_color should be with 300 colors.

• While doing make, Adapta changes those 5 colors in all stylesheets and images, and make clean cleans up all generated files from source directories.

If users want to try experimental browser specific theming, please pass this option:

--enable-chrome         enable Chrome(ium) support

The compressed crx files will be installed into Adapta/chrome and Adapta-Nokto/chrome.

Note:

• Today Chrome(ium) theming is supported only.

• Vivaldi can make custom themes via settings like these:

  Background: #FAFBFC (#3E515A)
  Foreground: #263238 (#ECEFF1)
  Highlight:  #00BCD4
  Accent:     #2A373E
  Accent Color from Active Page: [ ]
  Apply Accent Color to Window:  [x]
  Transparent Tabs:              [x]
  Corner Rounding:               2px
  

If users want to try "Plank" theming, please pass this option:

--enable-plank         enable Plank support

Then select Gtk+ via plank --preferences.

Note:

• Both Adapta and Adapta-Nokto shares same theming.
• Don't expect too much. Plank is NOT themeable widget for me!

Raw image is here.

• Resolution: 3840 x 2160 (4K = 2160p)
• Created with Gimp and Inkscape
• License under GPLv2

I mainly use it when running Budgie, and it might be suitable for night owls...

• Conversion to Gtk+ 3.22

• Prepare for Steam theming (priority: Low)
• Add Firefox specific theming (priority: undecided)

GPLv2

Note: SVG files are licensed under CC BY-SA 3.0

Nana-4, the developer of Flat-Plat.