Tests: revert Teseract to less perforant legacy mode, but more repeatable. Compensate with zoom in edit_project and filter noise out of OCR text.
<xsd:element name="Linux">
<xsd:complexType>
<xsd:attribute name="RealTime" type="xsd:boolean" use="optional" default="false"/>
%(toolchain_gcc)s
</xsd:complexType>
</xsd:element>