BNA8/AmazonBase/com.inductiveautomation.perspective/style-classes/table/column-header/style.json

{
  "base": {
    "style": {
      "backgroundColor": "#2D7D9F",
      "borderBottomColor": "#D5D5D5",
      "borderBottomStyle": "solid",
      "borderBottomWidth": "1px",
      "borderRightColor": "#D5D5D5",
      "borderRightStyle": "solid",
      "borderRightWidth": "1px",
      "color": "#FFF"
    }
  }
}