jetbrains-settings/material_custom_theme.xml

<application>
  <component name="MaterialCustomThemeConfig">
    <option name="colorScheme" value="TheoryOfNekomata" />
    <option name="excludedColor" value="2e3c43ff" />
    <option name="accentColor" value="eeca3fff" />
    <option name="notificationsColor" value="444444ff" />
    <option name="treeSelectionColor" value="444444ff" />
    <option name="highlightColor" value="444444ff" />
    <option name="secondBorderColor" value="444444ff" />
    <option name="tableSelectedColor" value="996699ff" />
    <option name="contrastColor" value="222222ff" />
    <option name="disabledColor" value="444444ff" />
    <option name="secondaryBackgroundColor" value="222222ff" />
    <option name="buttonColor" value="666666ff" />
    <option name="selectionForegroundColor" value="ffffffff" />
    <option name="selectionBackgroundColor" value="996699ff" />
    <option name="textColor" value="ccccccff" />
    <option name="foregroundColor" value="eeeeeeff" />
    <option name="backgroundColor" value="222222ff" />
  </component>
</application>