When viewing posts, either on /posts or /favorites, there is a dropdown called Mode with some options, it would be cool if one of the options on the dropdown was called "Download" where upon clicking a post it would open it in either the current or a new tab and would be as if you clicked the download button on the page. So instead of the opened url being https://e621.net/posts/xxxx it would be like https://static1.e621.net/xxxxx