Hi Gokul,
which image of the button do you try to (ex)change?
Can you attach your ctl file here? (Maybe ZIPped when the forum software complains about filetype.)
And please use some spell checking before sending your post… 😄
Best regards,
GerdW

using LV2016/2019/2021 on Win10/11+cRIO, TestStand2016/2019