How to select specific themes ?
Much has been written about themes and the selection thereof, but I have not yet found any advice on the following :
* Is there a way to filter my search in order to be presented only with themes related to my chosen niche ?
* The actual theme template I end up with does not look as it is shown in the initial presentation page where I search for a theme.
* Example : If I were to build a site about exercise and fitness, is there a way to find suitable themes with a header picture depicting a gym or people exercising ?
* In other words, can I somehow search for a theme (template) which is very specifically related to my niche ?
* I have seen examples of themes of say photography, with a header showing cameras, etc but when selected the actual template is without the header.
Any comments please ?