What does this mean?

[KnightFandragon]

Im not 100% sure but my guess is the number in the colored box is your max milimeters of armor your gun can penetrate at the range. The white number is your range from target and the color is: Red...no possible penetration, Yellow, possible penetration or damage and green is supposed to be Guarenteed penetration but id take it w/ a grain of salt.....those colors and numbers from what ive seen dont mean a whole hellva lot. Ive had 115 Green Penetration on a Tiger who has 100mm of armor on its front and bounced so yeah. Then ive had like 80 Red on a Pzr IV front and blown it into next year. I guess those numbers are more a guideline then anything else. I prefer them off haha