rimworld-mod-template/.vscode/about.xml.xslt

<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
  <xsl:output method="xml" encoding="utf-8" indent="yes"/>
  <xsl:strip-space elements="*"/>
  
  <!-- Match ModMetaData and its descendants, modify modVersion element -->
  <xsl:template match="/Project/PropertyGroup/ModMetaData|ModMetaData/@*[not(name()='Id')]|ModMetaData//node()">
    <xsl:copy>
      <xsl:apply-templates select="@*[not(name()='Id')]|node()"/>
    </xsl:copy>
  </xsl:template>
  
  <!-- Modify modVersion element using the value of VersionPrefix -->
  <xsl:template match="ModMetaData/modVersion">
    <modVersion>
      <xsl:copy-of select="@*" />
      <xsl:value-of select="/Project/PropertyGroup/VersionPrefix"/>
    </modVersion>
  </xsl:template>
  
  <!-- Remove other elements and attributes -->
  <xsl:template match="@*|node()">
    <xsl:apply-templates/>
  </xsl:template>
</xsl:stylesheet>