This statement is to complex for the transpiler because of old browser support (IE11). Old Browsers do not support the spread (...) function and there is no PolyFill for it possible. I will give new Browsers priority in the future more and more, because those old browsers will eventually disappear anyway.
So temporary solution:
B4X:
Dim lineColor as List = tblA.styles.lineColor
lineColor.AddAll(Array as Int(44, 62, 80)
Future version of BANano this will not be needed FOR MODERN BROWSERS. If one wants to support the old browsers, it will still be needed and one will have to write this code like this:
B4X:
If BANano.OLDBROWSER Then
Dim lineColor As List = tblA.styles.lineColor
lineColor.AddAll(Array As Int (44, 62, 80))
Else
tblA.styles.lineColor.AddAll(Array As Int (44, 62, 80))
End If