Explanation
"Por defecto" is very common; "Por omisión" is used by KDE translation team; "predeterminado" may also be used. See https://es.wikipedia.org/wiki/Valor_por_defecto
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"Por defecto" is very common; "Por omisión" is used by KDE translation team; "predeterminado" may also be used. See https://es.wikipedia.org/wiki/Valor_por_defecto