I’ve spent a few hours today (Sunday, May 26, 2019) installing and configuring the free ColorMag WordPress theme only to discover that I cannot add a top banner AdSense block to monetize the site.
I liked everything I saw about the theme, especially the categories since I hope to diversify this site in many ways. But my brief experience with the theme reveals that any effort to place advertisements is not possible, at least not without editing the files directly. Editing files is problematic because if (when) there is an update to the theme, any manual modifications are overwritten by the update. I’ve already experienced that with the default.
Oh well… live and learn! It’s possible that many of the free themes available will limit my ability to monetize, which I guess makes sense.