fix: allow all themes from vega themes in types

src/embed.ts

@@ -38,7 +38,7 @@
 export let vegaLite = vegaLiteImport;
 
 // For backwards compatibility with Vega-Lite before v4.
 const w = (typeof window !== 'undefined' ? window : undefined) as any;
 if (vegaLite === undefined && w?.vl?.compile) {
   vegaLite = w.vl;
 }
@@ -72,7 +72,7 @@
   bind?: HTMLElement | string;
   actions?: boolean | Actions;
   mode?: Mode;
-  theme?: 'excel' | 'ggplot2' | 'quartz' | 'vox' | 'dark';
+  theme?: keyof Omit<typeof themes, 'version'>;
   defaultStyle?: boolean | string;
   logLevel?: number;
   loader?: Loader | LoaderOptions;
@@ -109,7 +109,7 @@
   'vega-lite': vegaLite ? vegaLite.version : 'not available',
 };
 
 const PREPROCESSOR: {[mode in Mode]: (spec: any, config?: Config) => VgSpec} = {
   vega: (vgSpec: VgSpec) => vgSpec,
   'vega-lite': (vlSpec, config) => vegaLite.compile(vlSpec as VlSpec, {config: config as VlConfig}).spec,
 };
@@ -212,7 +212,7 @@
 }
 
 function embedOptionsFromUsermeta(parsedSpec: VisualizationSpec) {
   const opts = (parsedSpec.usermeta as any)?.embedOptions ?? {};
   if (isString(opts.defaultStyle)) {
     // we don't allow styles set via usermeta since it would allow injection of logic (we set the style via innerHTML)
     opts.defaultStyle = false;
@@ -266,7 +266,7 @@
   const config: Config = isString(opt.config) ? JSON.parse(await loader.load(opt.config)) : opt.config ?? {};
   const patch: PatchFunc | Operation[] = isString(opt.patch) ? JSON.parse(await loader.load(opt.patch)) : opt.patch;
   return {
     ...(opt as any),
     ...(patch ? {patch} : {}),
     ...(config ? {config} : {}),
   };
@@ -377,7 +377,7 @@
     loader,
     logLevel,
     renderer,
     ...(ast ? {expr: (vega as any).expressionInterpreter ?? opts.expr ?? expressionInterpreter} : {}),
   });
 
   view.addSignalListener('autosize', (_, autosize: Exclude<AutoSize, string>) => {
@@ -447,7 +447,7 @@
       details.append(summary);
 
       documentClickHandler = (ev: MouseEvent) => {
         if (!details.contains(ev.target as any)) {
           details.removeAttribute('open');
         }
       };