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Select an owned active brand kit. This uses template evaluation with a 1 MiB source limit and a 3 MiB data limit, even when data is omitted. Overrides the source thirds-brand-kit meta default. Supplies reserved brand.name, brand.palette, brand.colours.primary/secondary/accent (the kit colour that fits each role of this design, so the design keeps its own pattern of dark, pale, and bright colours), brand.colours.dark/light (a dark and a light surface in the kit's hue, each readable on the other), brand.ink.primary/secondary/accent/dark/light (#ffffff, #111111, or #000000, the text colour on each role colour, at least 4.5:1), brand.logo, brand.logos, brand.logo_ground (the plate colour on which the first logo shows well), brand.logo_tile.primary/secondary/accent/dark/light (transparent when the logo shows well on that role colour, or else the plate colour), brand.logo_aspect (the logo width divided by its height), brand.fonts entries with family and src, and brand.heading_font and brand.body_font (the family of the first and second font). data.brand is refused when a kit is selected. A kit with no colours supplies no colour roles. Only present logos and fonts are supplied. With no kit, brand is an empty value that is false in a test, so brand.colours.primary | default('#000000') gives the default. Assets are captured before enqueue. Schemas validate customer data before brand is added.