Argentalas

Please feel free to close/incorporate into more complete commit or w/e.

Hi, see `config.def.h` ``` { 0, XK_m, g_toggle_image_mark, None }, { 0, XK_M, g_mark_range, None }, { ControlMask, XK_m, g_reverse_marks, None }, { ControlMask, XK_u, g_unmark_all, None }, ``` More...