Recent version of telegram-desktop added support for using system icon theme for tray icon. This patch adds some icons following breeze style.
According to [[ https://github.com/telegramdesktop/tdesktop/issues/7192#issuecomment-586558835 | comments on GitHub ]] , pass environemnt variable `TDESKTOP_DISABLE_TRAY_COUNTER=1` to telegram-desktop also make it follows KDE color scheme.