Tag(s) are used to mark the text and display the marked tagged text according to its defined effect visually. VTT tag provides following options under the Tags menu bar:

• Add (a new tag)
  • A tag is uniquely defined by both name and category
  • Name and category are trimmed string (no empty space at the beginning or end of the string)
• Delete
  • Delete a selected tag
  • All markups associated with this deleted tag will be deleted
  • The tag name will be removed from editing menu if no other tags use this name
  • The tag category will be removed from editing menu if no other tags use this category
• Edit properties of Tags
  • Name
    • Can't be empty
    • Can begin or end with space (trimmed)
    • Can't include character, '|'
  • Category (optional)
    • Can be empty (optional)
    • Can begin or end with space (trimmed)
    • Can't include character, '|'

  • Font
  • Size
    • 12 (absolute value)
    • +2 (relative value)
    • -2 (relative value)
  • Text (foreground) color
  • Background color
  • Bold
  • Italic
  • Underline
  • Display filter

  • Preview
• Order arrange:
  • The order of defined tags can be arrange by
  • Move up the selected tag in the tags list
  • Move down the selected tag in the tags list
  • Sort Name|Category alphabetically

• Display filter feature
  • Only tags with both checked name and category will display the visual effect
• Quick keys mapping
  • 9 quick keys (1 ~ 9) are provided for markup operation.
  • key 0 is used to delete a selected markup
  • By default, quick keys are mapped to the first 9 tags (in the same order)
  • Provides a mapping feature to map quick keys to newly arranged order
  • Provides GUI to assign quick key to any defined tag
• Save and Import features
  • Save Tags to a file (tag configuration file)
  • Import Tags from a file (tag configuration file)

Please also note the first tag in Tags is reserved by VTT as follows:

Attribute	Default Value	Notes
Name	Text/Clear	Reserved by VTT
Font	Monospaced	Configurable
Size	12	Configurable
Bold	false	Configurable
Italic	false	Configurable
Underline	false	Configurable
Display	false	Configurable
Foreground Color	White	Configurable, used for selected text color
Background Color	Black	Configurable, used for selection background color