ACE — Color Legend

This page summarizes all colors used inside the ACE Analyzer, Stem Tester, Reverse Analyzer, and Quran Viewer. These colors ensure that students instantly see **roots**, **patterns**, **stems**, and **Tajwīd** rules.

1. Morphological Colors (Prefix, Stem, Suffix)

The ACE system uses consistent colors to show how a word is constructed:

prefix stem suffix

ya ktub u

ColorMeaningExamples
prefix Subject pronoun markers, particles attached: ya-, ta-, na-, sa-, la-, bi- يـ / تـ / نـ
stem Root with vowels and pattern of the form كتب، درس، قال
suffix Object pronouns, dual/plural endings, case endings -u, -na, -ta, -tumā

2. Root Letter Colors (r0, r1, r2)

Each radical is given a different violet-purple shade. This helps visualize hollow, defective, doubled radicals and weak letters.

r0 r1 r2

k t b

RadicalColorNotes
r0 (1st root letter) r0 Important for assimilations (Form VIII, Form V)
r1 (2nd root letter) r1 Often doubled in Form II/V
r2 (3rd root letter) r2 Weak letters (w/y) appear here in hollow/defective verbs

3. Tajwīd Colors (Qalqalah, Throat, Tafkhīm)

The ACE Tajwīd Engine highlights special letters:

Qalqalah Throat Tafkhīm
RuleLettersColorNotes
Qalqalah ق، ط، ب، ج، د blue Echoing sound on sukun
Throat Letters ء، ه، ع، ح، غ، خ red Deep articulation from throat
Tafkhīm (full mouth) خ، ص، ض، غ، ط، ق، ظ orange Heavy letters, raise tongue

Example: ḥ a ṣ b

4. Long Vowels / Madd Letters

Long vowels appear frequently in Form III, V, VI, and masdars.

SymbolArabicMeaning
ā ا Long /aA/
ī ي Long /iy/
ū و Long /uw/