The LPStd structure specifies a length-prefixed style definition.
cbStd (2 bytes): A signed integer that specifies the size, in bytes, of std. This value MUST NOT be less than 0. LPStd structures are stored on even-byte boundaries, but this length MUST NOT include this padding.
A style definition can be empty, in which case cbStd MUST be 0.
std (variable): An STD that specifies the style definition.