If you're interested in Quranic studies or recitations, I can offer some general information or point you to resources that might help:
: Some modern digital versions use colors to highlight letters or symbols that change between reciters. Usul (Foundational Rules) mushaf qiraat sab 39-ah pdf
Most modern prints (e.g., from the King Fahd Complex, or Turkish Diyanet editions) use small colored circles, crescents, or superscript letters to denote each Qira’ah. A key is provided: If you're interested in Quranic studies or recitations,
References:
Historical essays frequently analyze the "Art of the Quran," looking at how calligraphy in different regions (e.g., Javanese or Malay translations) incorporated the Seven Qira'at into their layouts. Recommended Resources (PDF/Archive) Read the key (usually page 2 or 3)
Uthmanic Rasm: All authentic Qiraat must conform to the original Uthmanic script (Rasm), even if they differ in vocalization (vowels) or dotting. 7 Types of Qiraat & How to Learn Them - Al-Azhar Classes