I am not able to understand how exactly the chrome.storage.sync.get function works.

Usual Scenario:

chrome.storage.sync.get(["color", "colortwo"], function(colors) {
    changeColor.style.backgroundColor = colors.colortwo
});

Special Scenario:

chrome.storage.sync.get(["color", "colortwo"], function({colortwo}) {
    changeColor.style.backgroundColor = colortwo;
});

I am not able to understand how specifying function({colortwo}) is able to let us access the colortwo variable directly since chrome.storage.sync.get is supposed to return an object containing all of our data

Would love some insights as to how exactly Javascript handles this special case so that I can gain a deeper understanding. Thanks!