Is it possible to set the colour or font of markers (e.g. the ones set by gud in gud-display-line by using make-marker). The theme I am using shows markers in a difficult-to-see light gray. I would prefer something very obvious (e.g. red) and potentially also slightly larger.

There is no information on setting or modifying colour/size in the gnu elisp manual. I'm not sure how this should work.

note: I am using spacemacs. The questions I believe is not specific to spacemacs, but I would also welcome an easy setting for doing this in spacemacs.


1 Answer 1


See this answer.

Except in your case:

(set-fringe-bitmap-face 'right-triangle 'my-custom-curly-face)

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