Please tell me how can I change the default bookmark marker icon?
![default](https://user-images.githubusercontent.com/27002236/50148441-90a62380-02c9-11...)
For me, this icon is too small and inconspicuous. I would like something like
![default](https://user-images.githubusercontent.com/27002236/50148881-b7b12500-02ca-11...)