Change font settings

1. Find the shape name you want to update. See here to find shape names.

2. Under settings, insert desire font under chartFont and font size under chartFontSize

Before and after

Template Presentation

51KB

slides_as_template_ColumnChart_font.pptx

JSON Payload

 {
  "presentation": {
    "template": "slides_as_template_ColumnChart_font.pptx",
    "export_version": "Pptx2010",
    "slides": [
      {
        "type": "slide",
        "slide_index": 0,
        "shapes": [
          {
            "name": "Chart 4",
            "settings": {
             "chartFont": "Trebuchet MS",
             "chartFontSize": 40         
            }      
          }
        ]
      }
    ]
  }
}