There are 2 repositories under appindicator topic.
Cross-platform SystemTray support for Swing/AWT, macOS, GtkStatusIcon, and AppIndicator on Java 8+
Sound input/output selector indicator for Linux
An Internet radio player for Linux
(Discontinued in favor of official client) GTK3 GUI client with systray, for ProtonVPN. Works on top of linux-cli.
Helps with dual booting. Ubuntu tray application to reboot into different OSes or UEFI/BIOS
Ubuntu indicator that displays how much load your CPU is under via the dying face from the video game DOOM.
Python bindings for pyNVML and psutil library over network
Vagrant Application Indicator for Ubuntu
Simple tray profile switcher for asusctl
A StatusNotifierHost widget written using the gtk+3 bindings for haskell provided by gi-gtk.
:traffic_light: Go bindings for libappindicator3 C library
ExpressVPN GUI for Linux
Simple Ubuntu keyboard modifiers indicator
Gnome appindicator (toolbar icon) tool to switch between different DNS servers
Indicator applet to control media using Playerctl
Create a system tray menu from a YAML file with shell commands
A Haskell implementation of the StatusNotifierItem protocol (https://www.freedesktop.org/wiki/Specifications/StatusNotifierItem/).
Small Linux app indicator that will show meeting notifications, extract zoom meeting links and allow one click conference joining.
Library to create and control tray icons with Elisp
Linux indicator that collects and displays news from a variety of news sources
Cryptocurrency price indicator for Ubuntu!
Linux GTK application that provides an overlay window with the list of shortcuts for the current focused application. Its a shortcut for shortcuts.
This Python 3 application adds an indicator for your ECOFLOW battery to your notification area.
Battery applet/indicator for the GNOME
System tray applet for Gnome desktops that allows you to create push notification from Mqtt topics or publish data to Mqtt topics.
Tray application to monitor the status of borgmatic backups
Discharge Rate application indicator for Ubuntu desktops
Zoity is an orchestrator for configuring and running services locally.
Simple and universal Cap/Num lock key indicator in the tray
App indicator for Linux that shows Red Star Belgrade fixtures