Previously, the download modal was using segmented buttons to identify what was selected. We observed that some users misinterpreted these buttons as actions - clicking the already selected segment. The similarity between our segmented buttons and our normal buttons made these users believe it could trigger a download of a certain filetype or language.
We removed the segmented buttons and replaced them with radio buttons to give the users clearer feedback of the currently selected filetype and content language, as well as implying that you can only select one at a time. We also added graphics to the radio buttons, to increase the visual clues of a selected state.