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: cluster_orthviews_classes.m
    path of file: ./repos/CanlabCore/CanlabCore/Visualization_functions
    
    the code of the file until where you have to start completion: function colors2 = cluster_orthviews_classes(cl,classes,overlay,myview,domontage, varargin)
% :Usage:
% ::
%
%    colors2 = cluster_orthviews_classes(cl,classes,overlay,myview,domontage, [orthview axis], [colors cell])
%
% Makes montage and cluster orthviews of classes of clusters in different
% colors (hard coded colors right now).
%
% :Inputs:
%
%   **cl:**
%        clusters structure with regions
%
%   **classes:**
%        integers with classes (i.e., networks) to be color-coded on plot
%
%   **overlay:**
%        anatomical underlay image

    
function colors2 = cluster_orthviews_classes(cl,classes,overlay,myview,domontage, varargin)
% :Usage:
% ::
%
%    colors2 = cluster_orthviews_classes(cl,classes,overlay,myview,domontage, [orthview axis], [colors cell])
%
% Makes montage and cluster orthviews of classes of clusters in different
% colors (hard coded colors right now).
%
% :Inputs:
%
%   **cl:**
%        clusters structure with regions
%
%   **classes:**
%        integers with classes (i.e., networks) to be color-coded on plot
%
%   **overlay:**
%        anatomical underlay image
%
%   **myview:**
%        if entered, shows centers on plot
%
%   **domontage:**
%        if non-zero, make montages of networks
%
%   **[orthview axis]:**
%        Optional; integer for which orthviews axis to use, 1:kk
%
% :Output:
%
%   Cell of colors, in order, for use in other functions
%
% :Examples:
% ::
%
%    classes = c.ClusterSolution.classes;
%    overlay = EXPT.overlay;
%    cluster_orthviews_classes(cl,c.ClusterSolution.classes, EXPT.overlay, 'saggital', 0);
%    cluster_orthviews_classes(cl,c.ClusterSolution.classes, EXPT.overlay, 'axial', 0);
%    cluster_orthviews_classes(cl,c.ClusterSolution.classes, EXPT.overlay, 'coronal', 0);
%    cluster_orthviews_classes(cl,c.ClusterSolution.classes, EXPT.overlay, [], 0);
%
% ..
%    tor wager
%    Colors update, minor improvements, Jan 2010
% ..

whichorth = 1;
if ~isempty(varargin), whichorth = varargin{1}; end