ah, ok, I’m thinking of submitting a feature request on github for the watermark module to be shown when cropping if it’s possible (maybe not for the composition guides, but for a case like photographing for a magazine cover where they have a predetermined text layout), but I’m not sure if it’s suitable as it’s more of an overlay rather than watermarks.
ah I see, I’m not familiar with writing Lua, but maybe I can try learn it, is the code/example of built-in guides file/code also accessible in the installation directory?
my custom (composition) guides is basically a combination of grid and diagonal line, I thought it easier for me to learn by the example of the built-in guides because the passport example is using a position relative to a 36x47 rectangle.