Hello, I would like to provide some clarifications. The theme toggle button located at the bottom left of the site’s sidebar is indeed visible, but it is very small and can easily be overlooked. Many users may not scroll down to the bottom of the sidebar or may not display the sidebar at all.
Here is my particular situation: my site uses a blog theme by default, with article previews, which is perfect for new visitors and registrants. However, this site also serves as a technical support forum for CAD software. Users accustomed to such forums may not be interested in blog posts with images; they prefer direct access to questions and answers.
To cater to both needs, I offer two themes: a default blog theme with images and article excerpts, and a simpler, more streamlined theme for the technical forum, based on the Foundation theme without article previews. I have documented this option in my admin announcements category, but I want to make it more visible to new visitors. Therefore, I would like to add a highly visible button at the top of the site that allows users to easily switch between the blog theme and the more streamlined technical forum theme.