使用Git安装
# in case of permission errors
sudo chown $USER:$USER -R /usr/share/themes/
sudo chmod 755 -R /usr/share/themes/
cd /usr/share/themes/
git clone https://github.com/anmoljagetia/Flatabulous
源： https://github.com/anmoljagetia/Flatabulous/issues/79
Unable to locate package flatabulous-theme 找不到主题解决方案
原文：https://www.cnblogs.com/chowkaiyat/p/10960305.html