A smiling avatar with a red cross in a circle representing rejection, error, or invalid status. Ideal for feedback, identification, warning, denial, system error, approval process simple flat
Approval like confirmation & ok icon, - vector concept. This graphic also represents disapproval, like & dislike, validation & invalidation, consent & mandate, etc
Cross marks on lines, overlapping data charts, warning icons with alerts. Ideal for error analysis, troubleshooting, warnings, technical issues, system monitoring, data review simple flat metaphor