Color conveys the part of speech. Verbs are red. Nouns are blue. Participles are red with blue endings. Prepositions and conjunctions are green. Adjectives are underlined in blue. Adverbs are underlined in red. You can choose "by parts of speech" color coding or simply black text.
Bold indicates the presence of some amount of emphasis. Imperative verbs are bold, conveying that a command or respectful request is of some importance, the amount to be determined from context. In addition, for biblical Greek: nominative personal pronouns and all reflexive pronouns are bold as well as οὐ μή (absolutely not), as such words have some amount of emphasis, the amount to be determined from context.