verify-diagramlisted

## Visual Verification Verify the visual quality of: $file ### Step 1: CLI Validation ``` node ../cli/bin/claude-explains.js $file --validate ``` Parse the JSON output. Report all issues. ### Step 2: Render Preview ``` node ../cli/bin/claude-explains.js $file --preview 0 -o /tmp/verify_preview ``` Read the rendered PNG. ### Step 3: Visual Inspection - [ ] All labels readable (not overlapping, not clipped) - [ ] Content fills 80%+ of viewport - [ ] Clear visual hierarchy (3 size tiers) - [ ] Connector lines properly attached - [ ] Content centered or intentionally positioned - [ ] Colors match theme (60-30-10 rule) ### Step 4: Report ```json {"file": "$file", "pass": true, "issues": []} ```