apply_filters( 'widget_tag_cloud_args', array $args, array $instance )

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By default, the following parameters are available to $args:

• smallest – The smallest tag (lowest count) is shown at size 8
• largest – The largest tag (highest count) is shown at size 22
• unit – Describes ‘pt’ (point) as the font-size unit for the smallest and largest values
• number – Displays at most 45 tags
• format – Displays the tags in flat (separated by whitespace) style
• separator – Displays whitespace between tags
• orderby – Order the tags by name
• order – Sort the tags in ASCENDING fashion
• exclude – Exclude no tags
• include – Include all tags
• link – view
• taxonomy – Use post tags for basis of cloud
• echo – echo the results