I am having a tableau palette and after restarting the Tableau I don't found it
<?xml version='1.0'?>
<workbook>
<preferences>
<color-palette name=“Red-Blue-Green Diverging2“ type="ordered-diverging" >
<color>#009900</color>
<color>#0000CD</color>
<color>#CC0000</color>
</color-palette>
</preferences>
</workbook>