There are some images that are not correct in the manual.pdf: the second picture in Section 1.3, 1.5, 1.6 and 2.1. Here in each image the labels are missing. These are also exactly the images that do not appear correctly in https://gap-packages.github.io/SimplicialSurfaces/doc/chap0_mj.html.
Moreover there are some pictures in the html for example in Section 8.2 where the labels are missing but the corresponding images in the pdf are correct (https://gap-packages.github.io/SimplicialSurfaces/doc/chap8_mj.html).
There are some images that are not correct in the manual.pdf: the second picture in Section 1.3, 1.5, 1.6 and 2.1. Here in each image the labels are missing. These are also exactly the images that do not appear correctly in https://gap-packages.github.io/SimplicialSurfaces/doc/chap0_mj.html.
Moreover there are some pictures in the html for example in Section 8.2 where the labels are missing but the corresponding images in the pdf are correct (https://gap-packages.github.io/SimplicialSurfaces/doc/chap8_mj.html).