fix(meta): ability to opt-out theme_color property

Fixes #53

src/parts/meta/index.ts

@@ -58,10 +58,11 @@ export default (pwa: PWAContext) => {
     head.meta.push({ name: 'description', content: options.description })
 
   // Theme Color
-  const themeColor = pwa.meta.theme_color || (pwa.manifest && pwa.manifest.theme_color)
-
-  if (themeColor)
-    head.meta.push({ name: 'theme-color', content: themeColor })
+  if (options.theme_color !== false) {
+    const themeColor = pwa.meta.theme_color || (pwa.manifest && pwa.manifest.theme_color)
+    if (themeColor)
+      head.meta.push({ name: 'theme-color', content: themeColor })
+  }
 
   // Lang
   if (options.lang) {

src/parts/meta/types.ts

@@ -1,20 +1,20 @@
 export interface MetaOptions {
   name: string
-  author: string
-  description: string
+  author: string | false
+  description: string | false
   favicon: boolean
   mobileApp: boolean
   mobileAppIOS: boolean
   appleStatusBarStyle: boolean
-  theme_color: string | undefined
-  lang: string
-  ogType: string
-  ogSiteName: boolean | string
-  ogTitle: boolean | string
-  ogDescription: boolean | string
-  ogImage: boolean | string | { path: string; width?: number; height?: number; type?: string }
+  theme_color: string | false | undefined
+  lang: string | false
+  ogType: string | false
+  ogSiteName: string | boolean
+  ogTitle: string | boolean
+  ogDescription: string | boolean
+  ogImage: string | boolean | { path: string; width?: number; height?: number; type?: string }
   ogHost: string | undefined
-  ogUrl: boolean | string
+  ogUrl: string | boolean
   twitterCard: string | undefined
   twitterSite: string | undefined
   twitterCreator: string | undefined