The phrase "a theme explored" is correct and usable in written English.
It can be used when discussing a particular subject or idea that has been examined or analyzed in a piece of writing, art, or discussion.
Example: "In her novel, a theme explored is the struggle for identity in a changing world."
Alternatives: "a theme examined" or "a theme investigated".
It picks up on a theme explored in other, larger works, yet here the artist has brought something searching and cerebral to the stone.
It is a theme explored by the video that now seems to launch Christmas each year: the trademark tearjerker John Lewis advert.
The poem also makes much of the work of memory, a theme explored as well in the "Ode: Intimations of Immortality from Recollections of Early Childhood".
Such stories also demonstrate Mr. Ross's interest in alter egos and mirroring, a theme explored with caffeinated and sometimes aggravating complexity in "Mr. Peanut".
The play, now 54 years old, still packs considerable dramatic punch, no small feat considering that it relies on a theme explored by countless other writers before and since: the young female wallflower.
This is a theme explored recently in the This Girl Can campaign – and I'd recommend anyone who wants to focus on the sheer enjoyment and exhilaration of sport to take up triathlon.
INCH's meetings are organized around variations on a major theme explored over a period of 18 to 24 months, with the chosen texts often reflecting the literature and traditions of the host country.
I've timed you with my aneroid barometrical check clock and you'll have to come down to the station!" The officer's unlucky subjects were speeding in a flying machine - a popular theme explored by future-gazers.
Thermal habituation is a central theme, explored first in the cold, and then within hot environments.
The obsessive, sweaty amateur aspiring to the professional kitchen is a familiar theme, explored in great detail by many including, most recently, Bill Buford in Heat and in the excellent Michael Booth's explorations of Japanese and French food.
On 22 June 1924 he spent time working out the plot, a continuation of the supernatural theme explored in "Unacademic Exercise".
