Android wordpress blog posts - change default theme

Hi,

I have wordpress up and running with a custom theme. When I post a new post on my PC i have to change the post type to the theme I want to use and it posts perfectly. However when using the Android app to post a new post it seems to just use the default post theme and I cant change it so all the posts are using the wrong theme.

Is there a way to default the theme for a post so that this won’t happen? My theme has a dark choice and a light choice and it seem the light choice is the default setting but I can’t find a way to change that or even a place where this can be set.

Any help would be awesome.

Thank you
J