The phrase "a prevailing theme" is correct and usable in written English.
It can be used to describe a dominant or recurring idea or motif in a piece of literature, art, or discussion.
Example: "In her novel, the author explores a prevailing theme of love and sacrifice that resonates throughout the story."
Alternatives: "a dominant theme" or "a recurring theme".
Holes, in fact, were a prevailing theme.
The debasement of marriage by the well-born is a prevailing theme in "Los Caprichos".
In their jaunty opening video – replete with headphoned hipsters – music proved to be a prevailing theme.
Memory is a prevailing theme in the play: the aged matriarch suffers from dementia and the grown daughter is flighty.
Law and order has been a prevailing theme for John A. Catsimatidis, the billionaire Republican candidate who has repeatedly pledged to keep "hoodlums" off the streets.
Ledgerwood's panel guests included Ali Eteraz, whose Native Believer returned my mind to a prevailing theme of the day – the Muslim experience in America.
As a result, most of these respondents (who were the 36 focus group participants) were registered with a GP and the prevailing theme that emerged here was one of feeling welcomed and cared for as a result of this process.
Trende and Byler concede that their portrait of Republican dominance "is at odds with the prevailing theme of a Republican Party with serious demographic problems," which "make it difficult for the GOP to win the presidency".
And it is all theoretically elevated by nobility of purpose -- the vision of a pioneering literary contest and, above all, the prevailing theme of education as an ideal.
The minimalist mantra "less is more" has become a prevailing beauty theme of the fall 2013 London collections.
Persuading Republicans to raise taxes is seldom easy, particularly in an election year.Ever since Proposition 13, the prevailing theme in Californian politics has been voters' reluctance to pay more tax, even for better services.
