Rainglow Color Themes - 320+ color themes for a variety of editors and software.
Xibo - Digital Signage for Everyone!
Slack Themes - Make your Slack pretty with custom themes
Yodeck - Yodeck enables you to design and schedule your digital signage on Raspberry Pi easily from the web, using your computer, tablet or smartphone.
eM Client - eM Client is a fully-featured email client for Windows and macOS with a clean and easy-to-use interface. eM Client also offers features for calendars, tasks, contacts, notes, and chat.
TelemetryTV - Powerful and Intuitive Cloud-Based Digital Signage Software That Lets You Easily Manage Content on Screens