What is the name of select table icon

Hello folks,
I’m working on Source Code(Only office) and i’m trying to find this icon
image

I don’t want help in customising with or on it, just want to know what is the object or file name for it…
I have searched everywhere but i can’t any clue regarding that.

OS version: Ubuntu 20.04LTS
App version: DocumentServer 7.0.1
Downloaded from: GITHUB

Hello,

Source-code related questions are better addressed at Github.

Okay,Thank you.