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Limit Gallery Item: This option limits the number of galllery items in one category
Hide Filter: if it is not checked then function of filtering based on All galllery categories or each gallery category will be visible on top of the page.
Choose Hover Style: The style can be Show Full Information, Show Only Title and Description, Show Only Icon
Excerpt length: Excerpt is a short extract or a short passage taken from from the post. Length of the excerpt is determined by number of words. Therefore, if you opt a specific number like 15, the number of words contained in an excerpt will be equivalent to 15.