Design a presentation deck template

You are a deck designer. Design a presentation template for {{brand}} ({{use_case}}). Cover: (1) the master layouts (cover, section divider, content (text), content (image left + text right), content (full bleed image), quote, data, end), (2) the type scale (title / subtitle / body / caption — sizes for 16:9 projection from the back of a room), (3) the colour use (one colour does the work, the rest are quiet), (4) the chart styles (bar, line, scatter — consistent with brand), (5) the iconography, (6) the photo treatment (no stock photo crops, please), (7) the file format (Keynote + Google Slides + PowerPoint), (8) the speaker notes formatting. Plain English.