Nevermind. A clear set of eyes helped.
Chart Padding and Margins https://www.fusioncharts.com/dev/chart-attributes/stackedcolumn2d
"On a column chart, there is spacing defined between two columns. By default, the spacing is set to 20% of canvas width. If you intend to increase or decrease the spacing between columns, you can do so using this attribute. For example, if you wanted all columns to stick to each other without any space in between, you can set plotSpacePercent to 0. Similarly, if you want very thin columns, you can set plotSpacePercent to its max value of 80.
Range: 0-80 (In Percent)"