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<b>Warning</b>:  session_start(): open(/var/lib/php/sessions/sess_vtvev975dm5g1apnr1q75okmr4, O_RDWR) failed: No space left on device (28) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
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<b>Warning</b>:  session_start(): Failed to read session data: files (path: /var/lib/php/sessions) in <b>/var/www/tb-usercake/models/config.php</b> on line <b>51</b><br />
// use x for black and _ for white
static BWImage bwImageFromString(S s) {
  LS lines = tlft(s);
  if (empty(lines)) null;
  int h = l(lines), w = l(first(lines));
  BWImage out = new(w, h);
  for y to h: {
    S line = lines.get(y);
    for x to w:
      if (charAt(line, x) == '_')
        out.setInt(x, y, 255);
  }
  ret out;
}