TICKET A: BUG — regression: bars were rainbow-colored, now all same color since yesterday.
TICKET B: QUESTION — asks if PDF export exists or is planned; not reporting broken functionality.
TICKET C: SPAM — external unverified domain, pressure tactic, vague pretext, no prior context.
TICKET D: BUG — reproducible defect: filter sequence causes date range reset; "minor" label irrelevant.