SegmentedControl's segments now give way when narrow, their labels
ending in an ellipsis, down to twice a control's height each; past
that the strip scrolls as before. The pill's border and padding moved
onto the scrolling strip, and the row inside it takes that floor as its
least width, so the strip scrolls exactly to its last segment. The
palette macro now writes each color's name from its field: Palette and
Syntax gain NAMES and token_mut for every color, the quiet fills too.
Tests press a density segment and each slider, and fit the density
strip in 280px with the text a step and a half larger.
settings::ThemeEditor lays a theme open: density, corners, text size,
high contrast and reduced motion, then twelve colors of the mode shown,
each a swatch that opens a picker beside its hex; each change hands the
owner a whole draft. Theme::set_palette takes an owner's palette per
mode, the colors fading to it when the mode shows; Theme::palette names
the palette the shown mode fades to; Palette::token_mut and
Syntax::token_mut reach a color by its field's name. The gallery's
theme page applies the editor to the whole gallery live, with a way
back to Ely's theme.
ZacharyZhang-NY