2.1.1318 Part 4 Section 5.1.5.3.9, rPr (Text Run Properties)

a.   The standard specifies a default kerning for fonts down to a 0 point for the kern attribute of the rPr, defRpr and endParaRPr elements.

Office uses a default value of no kerning if the kern attribute is not specified.

b.   The standard states that the smtClean attribute of the rPr, defRpr and endParaRPr elements has a default value of 0 or false.

In Office, the smtClean attribute of the rPr, defRpr and endParaRPr elements has a default value of true.

c.   The standard does not fully describe the process for resolving missing attribute values.

In Office, attributes not specified explicitly within this element shall have their values determined by inheritance. Attribute values will be resolved using an applicable ancestor element of the same type as this element. The inheritance order in which another applicable attribute value shall be applied is as follows:

A corresponding ancestor element which is a child element of the lstStyle element (“[ECMA-376] Part 4 §5.1.5.4.12; lstStyle (Text List Styles)”) contained within the same package part as the text to which it applies that also has a matching paragraph level value.

A corresponding ancestor element which is a child element of the lstStyle element (“[ECMA-376] Part 4 §5.1.5.4.12; lstStyle (Text List Styles)”) contained within the theme element (“[ECMA-376] Part 4 §5.1.8.9; theme (Theme)”).

If the value of an attribute is not determined via this process, the default value specified within this element shall be used.

PowerPoint uses a corresponding child element which is contained within the corresponding sldMaster element (“[ECMA-376] Part 4 §4.4.1.39; sldMaster (Slide Master)”) if the value of an attribute is not determined by this inheritance order. If the corresponding sldMaster element (“[ECMA-376] Part 4 §4.4.1.39; sldMaster (Slide Master)”) does not specify the value of the attribute and the value was not determined from the inheritance order, then the default value specified within this element shall be used.

d.   The standard does not specify usage with negative versus positive values or a default value for the baseline attribute of the rPr, defRPr and endParaRpr elements.

Office uses negative attribute values for subscript text, positive values for superscript text and a default value of 0.

e.   The standard states that the sz attribute of the rPr, defRpr and endParaRPr elements retrieve its default value from the defRpr element.

Office uses a default value of 1800 for this attribute.

f.   The standard does not specify a default value for the noProof attribute of the rPr, defRpr and endParaRPr elements.

Office uses a default value of 0, or false, for this attribute.

g.   The standard does not specify a default value for the cap attribute of the rPr, defRpr and endParaRPr elements.

Office uses a default value of none for this attribute.

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