highcontrast: fix border for focused spinbuttons
documents: add theming for dark theme version of GdTaggedEntry
documents: use right fg color for entry tag
release: prepare for 3.5.3
adwaita: don't set a background color in a wildcard selector

This isn't needed anymore, as now legacy GtkStyle widgets will not try
to draw a transparent background.
a11y-base: don't set a background color in a wildcard selector

This isn't needed anymore, as now legacy GtkStyle widgets will not try
to draw a transparent background.
separators: use the right color for view separators in dark variant

We were using a too dark color, which would end up being
undistinguishable from the view background.

https://bugzilla.gnome.org/show_bug.cgi?id=679085
themes: set background color for GtkClutterOffscreen

I need to investigate why this doesn't get any transparent background by
default, but removing the wildcard selector without this breaks
clutter-gtk applications, so let's use the workaround for now.
adwaita: theme the .gtkstyle-fallback theme selectors
osd: don't override style for all widgets

Since not every widget is supported with a different style yet when
added to an OSD overlay, don't override the style for all of them, but
only for those we actually support.

https://bugzilla.gnome.org/show_bug.cgi?id=679327
Improve theming for GtkMenuButton

Make it use the Epiphany style.
Assamese translation reviewed
menu-button: ensure no text shadow on menu items for GtkMenuButton
nautilus: update view theming for nautilus master
metacity-3: Update style of attached modal dialogs

Modal dialogs are now centered rather than attached to the parent's
titlebar. Use a flat titlebar style which fits the new position better.

https://bugzilla.gnome.org/show_bug.cgi?id=674499
level-bar: styling for new GtkLevelBar
view: render symbolic icons lighter in views
floating-bar: use the light inset color define for box-shadow

Or it will look really bad in the dark theme variant.

https://bugzilla.gnome.org/show_bug.cgi?id=679810
nautilus: don't use the theme bg color for desktop icons

Use the selected fg instead, which also works fine with the dark
variant.

https://bugzilla.gnome.org/show_bug.cgi?id=679810
view: tweak symbolic image color to work correctly in dark variation