Flat-Plat-Blue Theme

Flat-Plat-Blue Theme is a GNOME Shell/GTK Theme forked from Materia Theme (formerly Flat-Plat) with the following refinements:

• All coloured elements (e.g. check boxes, sliders, switches, etc) are changed into blue to provide a more consistent and comfortable visual experience;
• The top bar is transparent when no window is maximised (starting from GNOME Shell 3.26, but disabled in GNOME Shell 3.32 due to upstream changes);
• Open Sans is the default font of the theme; and
• Other minor changes and fixes.

The latest version features the redesign of running-app indicators for dash and dash-to-dock (See Screenshot).

The theme includes three variants:

• Dark title bar and light window's background (Flat-Plat-Blue)
• Light title bar and light window's background (Flat-Plat-Blue-Light)
• Dark title bar and dark window's background (Flat-Plat-Blue-Dark)

Each variant comes with normal and compact themes for different screen sizes.

(Scroll down for screenshots)

The Origin Story

I forked and modified the Flat-Plat Theme for personal use, but I reckoned there were people out there who wanted a colour scheme that was more comfortable to look at, so I put together the theme and release it. You are welcomed to fork it and make further modifications yourself.

Download

• Flat-Plat-Blue for GNOME 3.34/ 3.32/ 3.30 /3.28 / 3.26 / 3.24 / 3.22

Unsupported

• Downstream customized GNOME sessions

  e.g. "Ubuntu" session, "Pop" session. To properly use Materia on GNOME Shell, please install gnome-session and then switch to "GNOME" or "GNOME on Xorg" session from your display manager.

• elementary apps

  Because they are based on their own stylesheet that conflicts with GTK standards.

Requirements

• GTK >=3.20
• gnome-themes-extra (or gnome-themes-standard)
• Murrine engine — The package name depends on the distro.
  • gtk-engine-murrine on Arch Linux
  • gtk-murrine-engine on Fedora
  • gtk2-engine-murrine on openSUSE
  • gtk2-engines-murrine on Debian, Ubuntu, etc.
• glib-compile-resources - The package name depends on the distro.
  • glib2 on Arch Linux
  • glib2-devel on Fedora, openSUSE, etc.
  • libglib2.0-dev on Debian, Ubuntu, etc.

For Ubuntu, you'll also need the libxml2-utils package.

Installation

Arch Linux

Arch Linux users can install Flat-Plat-Blue theme by installing flatplat-blue-theme package via AUR, coutesy of @elementh.

Manual Installation

GNOME Shell/GTK Theme install

• Download the archive of the theme
• Extract the files from the archive
• In your terminal, enter the directory of the extracted theme, then issue the following command:

sudo sh install.sh

• Use GNOME Tweak Tool to enable both the GTK+ Theme and the GNOME Shell Theme

GDM (Lock/Login Screen)

• Backup /usr/share/gnome-shell/gnome-shell-theme.gresource
• In your terminal, enter the directory of the extracted theme, then issue the following command:

sudo sh install.sh --gdm

• Restart your GNOME session. On X.Org, press Alt + F2, then type r and Enter. On Wayland, you may need to logout and log back in to see the change take effect.

Google Chrome Theme

• On Google Chrome, go to chrome://extensions
• In your file manager to src/chrome inside the theme's directory, then drag your preferred theme to Google Chrome
• Follow the instructions on Google Chrome

Screenshots

(click to enlarge)

Other Info

• License: GPLv2
• Forked by Peter Y. Chuang - Novelist
• Source Code on Github