Character Palette?
Hi! I need to create a custom bullet in FrameMaker. I have version 15.0.4.751. Looking at several online instructions (such as this one), I'm seeing that I need to go to File > Utilities > Character Palette. I don't have this option in my version of FrameMaker. I went to the FM help, but the latest instructions there also refer to this option. Here is what I have.

Before posting this, I realized that the character palette may not be what I need. I specifically would like to use a .png file that I've created as the custom bullet. (Even more specifically - a "danger" icon that is a yellow triangle with an exclamation point inside of it.) If someone can send me a resource on that, or if it can even be done as a bullet, I would appreciate it -- I can't seem to find it and am probably using the wrong search terms. Thanks!
