Tinting validation
------------------

The (T)inting validation string is used to apply a simple tint to an icon.
Under Select 1, only supported tint type 0 for the sprite. Under Select 2,
the tint included the text and could be combined with faded and selected
icons. Under Select 3, problems with tints 'bleeding' into other sprites
have been corrected and the tint types have been extended to use the
ColourMap module.

The general form of the tint validation is :
  
  T<type>,<parameters>

Where <type> is the decimal ColourMap type, as defined in the documentation
for the ColourMap module. <parameters> consists of a comma separated list of
hexadecimal values to pass to the ColourMap module for the ColourMap type.

Under Select 1 and 2, only type 0 was supported, and then in a modified form
of the above :

  T0,BBGGRR

Where BBGGRR describes the colour to blend 50% to. This form is still
supported, but it is recommended that clients use the fully specified form
of this tint :
  
  T0,BBGGRR00,80


Effective: Wimp 4.90
