[ImgBot] Optimize images

*Total -- 2,972.23kb -> 357.39kb (87.98%)

/Color_Picker.png -- 1,004.64kb -> 114.80kb (88.57%)
/Color_piker.png -- 1,001.56kb -> 116.44kb (88.37%)
/assets/Color_Picker.png -- 966.03kb -> 126.16kb (86.94%)

Signed-off-by: ImgBotApp <[email protected]>

Author: ImgBotApp