Matrix Totals Not changing with JSON theme

Hi all, 

Long time user, first time poster. I am trying to create a theme for my Power BI report using JSON however; for some reason the column totals keep coming up black. I've looked around but can't seem to find an answer to the problem. For context here is my JSON as well as what my matrix currently looks like. As you can see the bottom row and final column has a black background and white font colour. Does anyone know of a solution to this?

{
	"name": "MatrixTemplate",
	"visualStyles": {
		"pivotTable": {
			"*": {
                "general": [{
					"responsive": true,
					"keepLayerOrder": true
				}],
				"background": [{
					"show": true,
					"color": { "solid": { "color": "#FFFFFF"}},
					"transparency": 0
				}],
				"border": [{
					"color": { "solid": { "color": "#808080"}},
					"show": true,
					"radius": 0
				}],
				"title": [{
					"show": true,
					"fontColor": { "solid": { "color": "#000000" } },
					"background": { "solid": { "color": "#FFFFFF" } },
					"alignment": "center"
				}],	
					"stylePreset":[{
                    			"name":"Condensed"
                			}],
					"grid": [{
					"gridVertical": true,
					"gridVerticalColor": { "solid": { "color": "#E6E6E6"}},
					"gridVerticalWeight": 1,
					"gridHorizontal": true,
					"gridHorizontalColor": { "solid": { "color": "#E6E6E6"}},
					"gridHorizontalWeight": 1,
					"rowPadding": 1,
					"outlineColor": { "solid": { "color": "#E6E6E6"}},
					"outlineWeight": 1,
					"textSize": 14,
					"imageHeight": 100
				}],
				"columnHeaders": [{
					"fontColor": { "solid": { "color": "#FFFFFF"}},
					"backColor": { "solid": { "color": "#442359"}},
					"outline": "Frame",
					"autoSizeColumnWidth": true,
					"fontFamily": "'Segoe UI', wf_segoe-ui, helvetica, arial, sans-serif",
					"fontSize": 8,
					"alignment": "Left",
					"titleAlignment": "Right",
					"urlIcon": true,
					"wordWrap": true
				}],
				"rowHeaders": [{
					"fontColor": { "solid": { "color": "#333333"}},
					"backColor": { "solid": { "color": "#442359"}},
					"outline": "Frame",
					"stepped": true,
					"steppedLayoutIndentation": 12,					
					"urlIcon": true,
					"wordWrap": true,
					"fontFamily": "'Segoe UI', wf_segoe-ui, helvetica, arial, sans-serif",
					"fontSize": 8,
					"alignment": "Left", 
					"showExpandCollapseButtons":true
				}],
				"values": [{
					"fontColorPrimary": { "solid": { "color": "#333333"}},
					"backColorPrimary": { "solid": { "color": "#FFFFFF"}},
					"fontColorSecondary": { "solid": { "color": "#333333"}},
					"backColorSecondary": { "solid": { "color": "#E7E7E7"}},
					"bandedRowHeaders": true,
					"valuesOnRow": true,
					"outline": "Frame",
					"urlIcon": true,
					"wordWrap": true,
					"fontFamily": "'Segoe UI', wf_segoe-ui, helvetica, arial, sans-serif",
					"fontSize": 8
				}],
				"subTotals": [{
					"rowSubtotals": true,
					"columnSubtotals": true,
					"fontColor": { "solid": { "color": "#FFFFFF"}},
					"fontFamily": "'Segoe UI', wf_segoe-ui, helvetica, arial, sans-serif",
					"backColor": { "solid": { "color": "#FFFFFF"}},
					"fontSize": 8,
					"applyToHeaders": true,
					"rowSubtotalsPosition": "Bottom",
					"perRowLevel": true,
					"perColumnLevel": true					
				}],
				"total": [{
					"fontColor": { "solid": { "color": "#FFFFFF"}},
					"fontFamily": "'Segoe UI', wf_segoe-ui, helvetica, arial, sans-serif",
					"backColor": { "solid": { "color": "#FFFFFF"}},
					"columnGrandTotal": {
						"fontColor": { "solid": { "color": "#FFFFFF"}},
						"backColor": { "solid": { "color": "#00B8DD"}}
					},
					"applyToHeaders": true,
					"fontSize": 8
				}]
			}
		}
	}
}