Thunar Dropbox is a plugin for thunar that adds context-menu items from dropbox. This plugin does not come with dropbox itself, you will need to install that separately.

The GtkHash extension for thunar which allows users to compute message digests or checksums using the mhash library. Currently supported hash functions include MD5, MD6, SHA1, SHA256, SHA512, RIPEMD, TIGER and WHIRLPOOL.

Bare metal GNU debugger for embedded ARM chips using Cortex-M0/M0+/M3/M4, Cortex-R4/R5/R7 and Cortex-A* processors. GDB is a source-level debugger, capable of breaking programs at any specific line, displaying variable values, and determining where errors occurred.

zulucrypt is a suite of applications for creating and managing volumes encrypted with luks, plain, truecrypt and veracrypt.

This is the Ikarius font of the Arkandis Digital Foundry, inspired by Hypatia sans from Adobe.

This package is transitional dummy package, it can be safely removed.