[ImgBot] Optimize images
[ImgBot] Optimize images

/Tool-Impl-Tray/src/main/resources/default_icon.png -- 19.42kb -> 0.68kb (96.5%)

Signed-off-by: ImgBotApp <858471a511451575f9769176c7c5b94525007a21@gmail.com>

XDean/ExtendableTool