Layan is a flat Material Design theme for GTK 3, GTK 2 and Gnome-Shell which supports GTK 3 and GTK 2 based desktop environments like Gnome, Budgie, etc.
Dulce Theme
Dulce argumentum pro TROMjaro
Nordic Theme
Nordica est thema Gtk3.20+ creatum utens pallete color horribilis Nord.
Windows 10 Dark Theme
GTK theme based on the appearance of Windows 10 using the included dark mode.
Iuno Theme
Tenax lemma pro TROMjaro.
SyncThing
Syncthing replaces proprietary sync and cloud services with something open, trustworthy and decentralized. Your data is your data alone and you deserve to choose where it is stored, if it is shared with some third party and how it’s transmitted over the Internet.
Velox Lookup
Quick Lookup is a simple GTK dictionary application powered by Wiktionary™.
QOwnNotes
Free open source plain-text file markdown note taking with Nextcloud / ownCloud integration
Trilium
Notae trilium notae hierarchicae sunt adhibita applicatione focus in magnis fundamentis cognitionis personalis aedificandae.
qpdftools
Instrumenta Qpdf Qt est facilis ad usum interfaciendi pro Ghostscript et Stapler, quod sinit usores normales suos PDFs regere.