What is the equivalent of "euphony" when applied to writing?

Question

In the details below, I use something to stand in for the word I am looking for. Speech may have euphony; writing may have something.

For example, when writing about the relative sizes of items, I might prefer to use "gigantic" and "tiny" as opposed to "big" and "minuscule," for consistency between word length and meaning. This has to do with the way the words appear on visually the page, not necessarily how they sound. In particular, the words chosen have something because of their character (or letter) count.

Clarification: I suppose "looks good" would be the meaning I am seeking (euphony is basically "sounds good" / "good sound"). I am looking for a single word, though, that is specific to writing. A lot of things that aren't writing "look good."

In response to @Zan700: he picks out that my above example is analogous to onomatopoeia. But here is another example: I might find words whose characters are all the same height to be pleasing to the eye, so for a user ID, I might pick "neo" instead of "Neo" (as Neo does in The Matrix). For simlar reasons, I might use the verb "peg" instead of "spike," because "spike" is too spiky in appearance (spikier than "peg"). In this example, the chosen words have something because of the shapes of the individual letters.

Yet another example: in the following poem (yes, I checked the definition of poetry in the OED), the characters are arranged in a visually pleasing manner: the antecedents line up vertically, as do the consequents, etc:

first <- function(x)
                                if
    (0  <  x %|% length) x[[1]] else if
    (x %|%    is.vector) x      else
                         NULL

Beauty is in the eye of the beholder, so some would find the following, syntactically and semantically equivalent poem more pleasing:

first <- function(x) if (0 < x %|% length) x[[1]] else if (x %|% is.vector) x else NULL

The preceding poems have something because of their layout.

So the meaning I'm looking for is "looks good," but not necessarily for any particular reason, just as euphony does not, in and of itself, have a particular reason behind "sounding good" (it could sound good because it rhymes, because of alliteration, or because it sounds like one's own name).

If there is no such word, perhaps I could invent one (say, for use as a proper name in a fictional story, or in a poem). Someone with better Greek could make a suggestion. Perhaps eumatia?

Answer 1

This is similar to characterization through word choice. For example, "Bill Null" might be used to emphasize that a character is tall (all the tall l's). In your examples, it's visually matching the word to its meaning, and analogous to onomatopoeia.

Answer 2

Typography is the general concept. As defined at Wikipedia:

Typography is the art and technique of arranging type to make written language legible, readable, and appealing when displayed.

If you're adjusting what length word you use in order to control the line length, margin, spacing, or other visual feature of a text, you are adjusting the typography. A more specific term is typesetting, referring to the physical or digital arrangement of letters.

There's no one word like euphony for describing particularly aesthetic typography or typesetting. It would depend on what you were accomplishing.