1. A method of operation in an automated Web portal generation system to generate sets of customizations of Web portal templates, the method comprising: parsing, by at least one component of the automated Web portal generation system, a number of Webpages of a first Website (domain/URL) from which a Web portal template to be customized is to be accessed; producing an entity feature set for the first Website based on a result of the parsing; processing the entity feature set for the first Website via a classifier executed by at least one component of the automated template generation system to produce a set of data that represents, for each of a plurality of entities, a respective probability of the entity belonging to a respective one of a plurality of classes; performing color matching on the set of data produced via the classifier to generate a number of proposed color combinations for a proposed customization of the Web portal template; and identifying one of the proposed color combinations for a proposed customization of the Web portal template.