czytelnego
Czytelnego to genitive singular form of the Polish adjective czytelny, meaning readable or legible. It is used to describe a noun that appears in the genitive case. For example: kolor czytelnego tła (the color of a legible background), ramka czytelnego tekstu (a frame of readable text), brak czytelnego kontrastu (a lack of legible contrast). For feminine nouns, the genitive form is czytelnej, as in kolor czytelnej czcionki (the color of a legible font).
The concept of readability is central in typography, design, and information presentation. The related noun czytelność
Czytelnego is a genitive singular form used with masculine and neuter nouns in many contexts; for feminine
Czytelność (readability/legibility), nieczytelny (illegible), zasady czytelności (readability guidelines).