• uses Mist engine
• taken from Arch Linux gtk-engines 2.21.0-1 package
• no functional changes so far (just reformatted to sane style)

• uses default gtk3 engine
• based on Mist-Redmond 1.2 (gtk3.8-theme_Mist-Redmond) taken from http://gnome-look.org/content/show.php?content=155580
• work in progress (goal is to match gtk2 version as closely as possible)

Known Issues (as of 03.01.2015 with gtk 3.14.6):

• focus hint
• text on progress bar
• visited links are white
• ComboBoxes: color under cursor should be white
• CheckBoxes, ComboBoxes: tick disappears
• Buttons: down state
• Buttons in dialogs
• FileChooser
• Tooltips
• Notebook, indent inactive tabs

Install like this:

~/.themes
~/.themes/Mist
~/.themes/Mist/gtk-3.0
~/.themes/Mist/gtk-3.0/widgets.css
~/.themes/Mist/gtk-3.0/colors.css
~/.themes/Mist/gtk-3.0/gtk.css
~/.themes/Mist/gtk-2.0
~/.themes/Mist/gtk-2.0/gtkrc

For GTK 2.x:

$ cat ~/.gtkrc-2.0
gtk-theme-name="Mist"
...

For GTK 3.x:

$ cat ~/.config/gtk-3.0/settings.ini
[Settings]
gtk-theme-name=Mist
...