The window can be created here. It's needed for the main part of Fluent.
local Window = Fluent:CreateWindow({
Title = "Fluent " .. Fluent.Version,
SubTitle = "by .idontgiveaf",
TabWidth = 160,
Size = UDim2.fromOffset(580, 460),
Acrylic = true, -- Turns off and on blur in case it's detected
Theme = "Dark",
MinimizeKey = Enum.KeyCode.LeftControl -- Used when there's no MinimizeKeybind
})
If you need to run code when the GUI closes, connect the window to a destroyed connection.