Rainglow Color Themes - 320+ color themes for a variety of editors and software.
Humaaans - Mix-&-match illustrations of humans with a design library.
Slack Themes - Make your Slack pretty with custom themes
Handsome Illustrations - Create unique illustrations for websites & applications.
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.
Blush - Illustrations for everyone