alias fx {
  window -pkodCfB +nt @FX -1 -1 400 400
  %col = $r(0,16777215)
  fx_loop
}
alias -l fx_loop {
  if ($window(@FX)) {
    var %ticks $ticks
    drawfill -rin @FX %col 0 0 0
    drawrot -nf @FX 4 0 0
    %col = $r(0,16777215)
    titlebar @FX - FPS: $ceil($calc(1000 / ($ticks - %ticks)))
    drawdot @FX
    .timer -m 1 0 fx_loop
} }