There are 3 repositories under wingpanel topic.
Stylish top panel that holds indicators and spawns an application launcher
Applications Menu for elementary OS and the Pantheon desktop environment
System monitor indicator for Wingpanel
System Monitor Indicator for Wingpanel
A Wingpanel indicator to toggle 'prefer dark variant' option in elementary OS
Wingpanel Sound Indicator
A simple program that can hide and show elementary OS top panel, Wingpanel
Wingpanel Date & Time Indicator
Wingpanel Power Indicator
Wingpanel Network Indicator
A Wingpanel indicator for Night Light
Wingpanel Notifications Indicator
Wingpanel Session Indicator
Wingpanel Bluetooth Indicator
Weather indicator for elementary OS Wingpanel
Wingpanel Dropbox Indicator
Weather app for elementary os
System monitor indicator for elementary OS Wingpanel
Wingpanel Privacy Indicator
Unofficial Ayatana compatibility layer for Wingpanel
Stylish top panel that holds indicators and spawns an application launcher
Apple's AirPods status indicator for elementary OS Wingpanel
Wingpanel Keyboard Indicator
An additional Wingpanel Indicator for elementary OS that allows you to choose current input method engine
A PRIME mode switcher for wingpanel.
A Wingpanel Indicator for NordVPN's CLI
Better-looking Telegram Desktop icons for Pantheon Wingpanel (elementary OS).
Template files for making a Wingpanel indicator
Keep your computer awake with ease.
Wingpanel Sound Indicator