These settings affect the Issue Header at the top of the Article Selector menu.The space is dedicated to showing the issue whose table of contents the reader is viewing.

"issueHeaderDisplay": {
  "covers": true, 
  "publicationDates": true, 
  "teasers": true, 
  "dateFormat": "MMM, yyyy" 
  },
  
"format": {
  "fonts": {
    "issueTitle": {"name": "Avenir-Light", "size": 16},
    "issueTeaser": {"name": "Avenir-Light", "size": 16},
    "issuePublicationDate": {"name": "Avenir-Light", "size": 16},
    "issueHeaderTitle": {"name": "Avenir-Light", "size": 16}
    },
  "colors": {
    "issueSelectorBackground": [125, 125, 125, 1.0],
    "issueTitleBackground": [125, 125, 125, 1.0],
    "issueDateBackground": [125, 125, 125, 1.0],
    "issueTeaserBackground": [125, 125, 125, 1.0],
    "issueTitle": [125, 125, 125, 1.0],
    "issueTitleSelected": [125, 125, 125, 1.0],
    "issueTeaser": [125, 125, 125, 1.0],
    "issueTeaserSelected": [125, 125, 125, 1.0],
    "issuePublicationDate": [125, 125, 125, 1.0],
    "issuePublicationDateSelected": [125, 125, 125, 1.0]
    },
  "dimensions": {
    "issueCellLineHeight": 20,
    "issueCellTitleLineHeight": 20,
    "issueCellTeaserLineHeight": 20,
    "issueCellDateLineHeight": 20,
    "issueCellDateMaxHeight": 44,
    "issueCellTeaserMaxHeight": 44,
    "issueCellDateMaxHeight": 44
    },
  "padding": {
    "articleHeaderPadding": [5, 5, 5, 5],
    "articleHeaderCoverPadding": [5, 5, 5, 5],
    "articleHeaderTitlePadding": [5, 5, 5, 5],
    "articleHeaderPublishedDatePadding": [5, 5, 5, 5],
    "articleHeaderTeaserPadding": [5, 5, 5, 5]
    },
  "positions": {
    "articleHeaderTitleAlignment": 1,
    "articleHeaderPublishedDateAlignment": 1,
    "articleHeaderTeaserAlignment": 1
    }
  }