You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: spm_Welcome.m
    path of file: ./repos/spm
    
    the code of the file until where you have to start completion: function F = spm_Welcome
% Open SPM's welcome splash screen
% FORMAT F = spm_Welcome

    
function F = spm_Welcome
% Open SPM's welcome splash screen
% FORMAT F = spm_Welcome
% F        - welcome figure handle
%__________________________________________________________________________

% Guillaume Flandin
% Copyright (C) 2014-2023 Wellcome Centre for Human Neuroimaging


%-Open startup window, set window defaults
%--------------------------------------------------------------------------
RectW = spm('WinSize','W',1); % 500x280 figure
Rect0 = spm('WinSize','0',1);
if all(ismember(Rect0(:),[0 1])), F = []; return; end