Figma sets the colour of the bullet based on the first character in the line. Add a Zero Width Space as the first character, then select the space and colour it your desired colour. I find selecting it with the keyboard is easiest.

An pseudocode example would be:

• <colour><zero width space></colour>Onboarding

BTW, there’s a zero width space between these brackets (​​)

What… is a zero width space… and how… nevermind

It’s just a regular space, then you select it and change the color. And to avoid the space, set the letter spacing around -20%