Grey shading

[henryford-metoffice]

I've also had some time to look at the seats on a recent flight. I believe the grey stiching comes in two different types:

1. A lower density grey
2. A higher density grey with diagonal features which looks lighter

So, I suggest: Border = Enum('border', names=['none', 'inner', 'outer'])

Could be: Border = Enum('border', names=['none', 'innerlow', 'innerdiagonal', 'outerlow', 'outerdiagonal'])

Which along with the 5 orange line patterns makes a total of 25 possibilities rather than just 15.

[henryford-metoffice]

Here's my latest photo with a 12 x 6 repeat detected:

[henryford-metoffice]

So, on another flight (not booked specifically for seat pattern decoding) I determined a place where "easyjet" would fit (assuming the cipher didn't change on each letter) and very roughly started filling in those letters in other places.

I also determined the pattern is not 12x6 but is 12x3 and repeats at an offset of (6, 3).

[henryford-metoffice]

Also a close-up of the two shaded of grey: