Added fwt components

fwt/components/Background/Background.sass

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+@use '/src/styles/classes.sass'

fwt/components/Background/Background.tsx

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+import './Background.sass'
+import { Show, createSignal } from 'solid-js'
+import fs from 'fs'
+import webpPath from '../../images/background.webp'
+import avifPath from '../../images/background.avif'
+import noBackground from '../../images/no-background.webp'
+
+interface Props {
+  image?: boolean
+  color?: string
+}
+
+let [imageLoaded, setImageLoaded] = createSignal(false)
+
+const checkBackground = () => {
+  if (!fs.existsSync(avifPath.src) && !fs.existsSync(webpPath.src)) {
+    setImageLoaded(true)
+  } else {
+    setImageLoaded(false)
+  }
+}
+
+export default (props: Props) => {
+  checkBackground()
+
+  return (
+    <>
+      <Show when={props.image}>
+        <Show when={imageLoaded()}>
+          <picture class="fullscreen">
+            <source srcset={avifPath.src} type="image/avif" />
+            <source srcset={webpPath.src} type="image/webp" />
+            <source srcset={noBackground.src} type="image/webp" />
+            <img width="1920" height="auto" decoding="async" loading="lazy" alt="An image background" />
+          </picture>
+        </Show>
+        <Show when={!imageLoaded()}>
+          <picture class="fullscreen">
+            <source srcset={noBackground.src} type="image/webp" />
+            <img width="1920" height="auto" decoding="async" loading="lazy" alt="An alternative background if found no image background" />
+          </picture>
+        </Show>
+      </Show>
+
+      <Show when={!props.image}>
+        <div style={{ background: props.color }} class="fullscreen" />
+      </Show>
+    </>
+  )
+}