认识
官网：https://www.freedesktop.org/wiki/Software/icon-theme/
icon-theme contains the standard also references the default icon theme called hicolor.
In order to have a place for third party applications to install their icons there should always exist a theme called “hicolor”
This name is chosen for backwards compatibility with the old KDE default theme.
The data for the hicolor theme is available for download at: http://www.freedesktop.org/software/icon-theme/. Implementations are required to look in the “hicolor” theme if an icon was not found in the current theme.
构建
# 2025-10-23 http://icon-theme.freedesktop.org/releases/hicolor-icon-theme-0.17.tar.xz
参考
What is special about the hicolor icon theme? | https://askubuntu.com/questions/300126/what-is-special-about-the-hicolor-icon-theme