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The International Tennis Federation has tested the typical ball speed for various court surfaces, and classifies them as slow, medium, or fast. Generally, a hard concrete surface—with no surfacing system applied—provides a fast speed of play. If that's not your preference or you want a more resilient surface to reduce the impact on your joints, an abundance of acrylic color coatings and cushioning systems are on the market that allow you to adapt the court surface to your style of play.
Both color coatings and cushioned surfacing systems come in an array of colors, allowing you to branch out from the traditional green court surface and use nearly any color or combination of colors you choose on your backyard tennis court. While there is no "regulation" color scheme for tennis courts, some colors work better under certain conditions.
David Foster Wallace, an amateur tennis player himself at Urbana High School in Illinois, included tennis in many of his works of nonfiction and fiction including "Tennis Player Michael Joyce's Professional Artistry as a Paradigm of Certain Stuff about Choice, Freedom, Discipline, Joy, Grotesquerie, and Human Completeness," the autobiographical piece "Derivative Sport in Tornado Alley," and Infinite Jest, which is partially set at the fictional "Enfield Tennis Academy" in Massachusetts.
The rules of modern tennis have changed little since the 1890s. Two exceptions are that from 1908 to 1961 the server had to keep one foot on the ground at all times, and the adoption of the tiebreak in the 1970s. A recent addition to professional tennis has been the adoption of electronic review technology coupled with a point-challenge system, which allows a player to contest the line call of a point, a system known as Hawk-Eye.