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This is a simple helper template, to be used in other templates. It displays a link to a category if that category exists; otherwise it just displays plaintext in grey, to reduce the visual prominence of the unlinked text.
Optional display text may be added as a second parameter.
This template is a variant of {{ LinkCatIfExists}}, which does no greying.
The greying was designed to improve the clarity of category header templates such as {{ EstcatContinentCentury}} on pages such as Category:11th-century establishments in Asia.
{{
LinkCatIfExists2|CategoryName|OptionalDisplayText}}
{{
LinkCatIfExists2|CategoryName}}
{{
LinkCatIfExists2|A non-existent category}}
→ A non-existent category{{
LinkCatIfExists2|United States}}
→
United States{{
LinkCatIfExists2|CategoryName|DisplayText}}
{{
LinkCatIfExists2|A non-existent category|Foo}}
→ Foo{{
LinkCatIfExists2|United States|USA}}
→
USA