FixedAreaLineColor: String
The FixedAreaLineColor property defines color of the line that separates fixed and non-fixed rows and columns.
Use JSON or the setFixedLineColor method to set the property value, and the getFixedLineColor method to get the property value.
Default property value is set to "#000000", which corresponds to black color.
The example of use is given on the page with description of the TabSheetMeasures.getFixedColumnCount.
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