Theme · Importing: VS Code themes read into Ely's palette, code palettes to choose

settings::read_vscode_theme reads a VS Code color theme, comments and
trailing commas and all: its type picks the mode, its colors and token
scopes name what they give, and the rest keep Ely's palette of that mode.
settings::ThemeImporter takes one dropped or browsed for, shows its name,
mode and count, and hands it over on Apply; a file that does not read
says why. theme::syntax_themes offers Ely's code colors, Quiet and Paper,
chosen through settings::SyntaxThemePicker, radio cards with a line of
code in each palette. A card's words now shrink as a plain block, so a
preview wraps inside the card at 280px.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/forms/mod.rs

@@ -56,8 +56,8 @@ pub use checked::{EmailInput, UrlInput, is_email, is_url};
 pub use chips::ChoiceChips;
 pub use code::{CodeInput, JsonInput, code_highlights, json_highlights};
 pub(crate) use code::{Kind, lex};
-pub(crate) use color::hex;
 pub use color::{ColorPalette, ColorPicker, ColorSwatch, EyeDropper, GradientEditor, GradientStop};
+pub(crate) use color::{hex, parse_hex};
 pub use combobox::Combobox;
 pub use date::{
     Calendar, CronEditor, CronRule, DatePicker, DateRangePicker, DateTimePicker, DurationPicker,