placeholder_text doesn't use font_color
It instead seems to use the default. I'm not saying it should use font_color, as that would be too saturated and probably confusing. Maybe placeholder_color?
maybe not placeholder_color as it's used for feedback too
secondary_color? message_color? no idea
You can color it with pango's markup:
placeholder_text = <span foreground="#aabbcc" style="italic">Input Password...</span>
That still doesnt change the color of stuff like "Authentication failed"
btw I think you need to escape the # with ##
Thanks tho!
Created a pull request with a bit of code. https://github.com/hyprwm/hyprlock/pull/35 I've named the variable placeholder_color, maybe feedback color could be another variable considering the fact that many people probably want different colors for negative feedback vs. reminder.