It turns out there is an active sixel branch of tmux. Scrolling is a bit broken (as in parts of images blank out when scrolling) but otherwise it works fine in

It turns out there is an active sixel branch of tmux. Scrolling is a bit broken (as in parts of images blank out when scrolling) but otherwise it works fine in mlterm (variable-width fonts ftw). So far they have merged past progress to a sixel branch on the upstream repo so it seems to be a matter of progress until it's merged. https://github.com/topcat001/tmux/tree/sixel https://github.com/topcat001/tmux/tree/sixel