The theme that
does the math.

1// color = identifier, gray = operator
2import { readFile } from "node:fs/promises";
3
4interface Theme {
5  name: string;
6  contrast: number;
7}
8
9async function load(path: string): Promise<Theme> {
10  const raw = await readFile(path, "utf8");
11  if (JSON.parse(raw).contrast < 7)
12    throw new Error(`below AAA: ${path}`);
13  return JSON.parse(raw);
14}

1# color = identifier, gray = operator
2from pathlib import Path
3import json
4
5class Theme:
6    def __init__(self, name: str, contrast: float):
7        self.name = name
8        self.contrast = contrast
9
10def load(path: Path) -> Theme:
11    data = json.loads(path.read_text())
12    if data["contrast"] < 7:
13        raise ValueError(f"below AAA: {path}")
14    return Theme(**data)

1// color = identifier, gray = operator
2use std::fs;
3
4struct Theme {
5    name: String,
6    contrast: f64,
7}
8
9fn load(path: &str) -> Result<Theme, Error> {
10    let raw = fs::read_to_string(path)?;
11    let theme: Theme = from_str(&raw)?;
12    assert!(theme.contrast >= 7.0, "below AAA");
13    Ok(theme)
14}

1/* warm background, cool structure */
2:root {
3  --bg: #1c1915;
4  --text: #e8e4df;
5}
6
7.editor {
8  background: var(--bg);
9  color: var(--text);
10  font-size: 14px;
11  line-height: 1.7;
12}