Capitalization

Capitalization is a writing convention that enhances readability and provides a consistent professional tone. Our system uses Title Case and Sentence case.

Capitalization schemes

Scheme	Definition	Usage in UI	Examples
Title Case	Capitalize the first letter of every word except articles, coordinating conjunctions, and short prepositions.	Proper terms and branded elements	Company Success Plan
Sentence case	Capitalize only the first letter of the first word and any proper nouns.	Standard for general terminology and labels	Numerical aperture, Resize image, New folder

Component guidelines

UI element	Case style	Examples
Labels	Sentence case	Search for files, Enable logging
Buttons	Sentence case	Filter, Sort, Upload
Dialog titles	Sentence case	Resize image, Capture settings
Menu items	Sentence case	Save as, Open recent
Proper terms	Title Case	Company, Segoe UI

Examples

Best practices

• Prefer sentence case for almost all UI text — easier to read, especially for non-native speakers.
• Reserve Title Case for branding and specific product names.
• Align with Material Design and Microsoft Fluent content style guidance.