Hi Paul If you are asking if it is possible to change the colour of a specific instance of a particular type of generic object, I think the answer is no, unless you modify the metapost definition for the generic object to allow attributes such as colours to be parsed. If you want all of a generic object type to be a colour, then use a layout statement something like: symbol-colour point label <colour> Easy hacks to mimic the first question include… Use point remark and set its colour to something striking with: symbol-colour point remark <colour> You can change the fonts to add or remove emphasis. Or use -context to make the label inherit colour as though it were another type of symbol… point label <x> <y> -text “label text” -context point anastomosis and symbol-colour point anastomosis <colour> I suspect not all point types work with -context, so you may have to hunt around to find one that works. Bruce From: Therion <therion-bounces@speleo.sk> On Behalf Of Paul Rowe Sent: Monday, 1 August 2022 15:30 To: List for Therion users <therion@speleo.sk> Subject: [Therion] Label and passage height colours Is it possible to change the label and/or passage height colours for specific points? I couldn't see a way of doing this. Thanks, Paul Rowe