Clawsker is an applet to edit the so called Claws Mail hidden preferences.
Claws Mail is a fast, lightweight and feature-rich MUA with a high number of configurable options. To keep the binary small and fast some of these preferences which not widely used are not provided with a graphical interface for inspection and/or modification.
Users wanting to edit such preferences had to face raw edition of their configuration files, now you can do it with a convenient GTK+3 interface using Clawsker. In addition to hidden preferences, windows positions and/or sizes and keyboard shortcuts can be edited.