FIM (Fbi IMproved) is a powerful image viewer with a minimalistic interface. FIM follows the spirit of the VIM (Vi IMproved) text editor: it is specialized in its task and powered by an own domain-specific language (DSL) which allows powerful custom features. FIM happens to be mostly appreciated by users of: [neo]mutt, emacs/mu4e, vim, command-line-interface and non-standard Linux Framebuffer-enabled hardware. The talk will introduce FIM's unique features from the perspective of its DSL, with word on the future. Feedback is welcome.