Calendar and tasks pack the most body text at the smallest default sizes, so those two gear-icon dialogs get a "Text size" card (Normal/ Large/X-Large) alongside the existing Border card -- a new Widget-level font_scale column with its own POST .../font-scale endpoint, same Widget-property-not-config-field shape as border_style. Threaded through every classic (calendar_render.py) and modern (html_render.py/ calendar_html_render.py) size calc via one shared panel_style. scaled_size() so row heights/max_rows already derived from font size re-fit around the bigger text automatically.