kde-plasma/union
Style engine providing a unified style description to separate output styles
USE Flags
svg
Global: Adds support for SVG (Scalable Vector Graphics)
tools
Global: Create separate binary for script helper tools (currently only: versionsort); useful if they are called extremely often
debug
Global: Enable extra debug codepaths, like asserts and extra output. If you want to get meaningful backtraces see http://www.gentoo.org/proj/en/qa/backtraces.xml
examples
Global: Install examples, usually source code
test
Global: Workaround to pull in packages needed to run with FEATURES=test. Portage-2.1.2 handles this internally, so don't set it in make.conf/package.use anymore