imlib_render_image_on_drawable_at_size() tended to leave nasty semi-transparent artifacts in 32-bit mode. Apparently, resizing an image in 32-bit mode affects the alpha channel even if there is no transparency in the image. With this patch, resizing is done in 24-bit mode (or whatever depth the original image has) before converting the image to 32-bit and rendering it on the display. Origin: https://gist.github.com/fmthoma/f76a1b44e00d5ca972bb cf. https://github.com/hut/ranger/issues/86#issuecomment-166027119