Hello,
I think there may be something wrong with your screen. My numbers come off as much brighter than yours for some reason, and much more legible. They also only stay red for a moment before turning back to white and being very clear. Maybe it's a problem with your monitor's settings. Honestly, I've never even noticed the red/black color issue. I've never noticed any problem with the color issue before at all. Have you tried adjusting your monitor setting? Is this image difficult for you to read? To me this is very clear, and it's much more clear than your image for some reason.

Thanks and let me know!

I see that in screenshot amount of chakra Minato needs has been increased. Maybe by edo Nagato? I'm just saying that and/or not having enough chakra turning number red might have something to do with it. But that's just my theory.

That's Exactly How The Game's Prompt System Was Designed From The Start TobiragoOda San Because Having Red Numbers In Your Team's Prompts Menu Means That The Amount Of Chakra Required For Doing Said Prompt (At That Time) Is Currently Inefficient As For The Current Round (You're In) As Such And As For The White Numbers (On Said Prompts As Such) They Are Actually Meant For The "Cooldown Timer" On Said Prompt As Such

i tried adjusting the brightness and contrast and it does look a bit clearer but it is still hard to see the value since the red seems to blend with the black background. I get that red means you don't have enough charka but it just hard to see. If they can just use a brighter red.

Well, That's Up To The Developers Of This Game..If They Want To Change How Deep The Red Color Is For The Required Amount Of Chakra Or Lessen How Dark The Black Layer On Said Prompt Is (As Such)

Hello, I will recommend for them to alter the color choice, but the likelihood of them doing so might be rather low.

i want fire effect when mystery is ready and smaller when the mystery is on cooldown but the chakra is ready