Due to the absence of any provided plot details or character information for 'Shorty's Secret', a comprehensive evaluation of its portrayal of LGBTQ+ characters and themes cannot be conducted. Therefore, no depiction can be identified.

Based on available plot details and cast information, 'Shorty's Secret' does not feature any identifiable transsexual characters or themes, resulting in no relevant portrayal to evaluate.

The movie does not contain any action or adventure elements.

This 1915 silent film is an original production with no widely recognized prior source material or historical figures that would establish character genders before the film's creation. Therefore, no gender swaps are identified.

As an original film from 1915, "Shorty's Secret" does not have pre-existing source material or established character races to compare against. Therefore, no character can be identified as having undergone a race swap.