“DuoTone themes use only 2 hues (7 shades in total). It tones down less important parts (like punctuation and brackets) and highlights only the important ones. This leads to a more calm color scheme, but still lets you find the stuff you're looking for.”
Theme colors are warm violet and salmon-orange, see a preview here on Base2Tone
DuoTone themes are optimized for many languages:
More optimizations to come. See the growing list of all languages.
More DuoTone themes.
Good catch. Let us know what about this package looks wrong to you, and we'll investigate right away.