Hello I'm looking for a Therion map symbol to emphasize the hazard posed by a localised low roof in passages (typically 2m to 5m in diameter) that are usually inaccessible due to water, but in dry conditions appear innocuous to the unwary. Currently I'm using an empty placeholder symbol, point u:sumphazard, but want to upgrade!
I've been using the SBE point danger symbol to identify hazards such as zones of active passage collapse. One approach for sumping hazard would be to use the same symbol, and change the colour to blue, but I would like the distinction to be available for black and white outputs as well as colour outputs. Since I'm not very good at metapost, I'm looking to see if anyone has anything they'd be willing to share, or perhaps write! What I have in mind is something like an exclamation mark over top of some water squiggles. Maybe like one of these? The links behind the images below might have some useful elements. <https://i.pinimg.com/originals/02/4a/bc/024abcc38e0f1601c40650f0795948c7.jp g> <https://static.vecteezy.com/system/resources/previews/000/112/522/original/ flat-water-icon-vector-set.jpg> Thanks in advance. Bruce
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