Add demo artwork

frontend/src/utility-functions/images.ts

@@ -0,0 +1,23 @@
+/* eslint-disable import/first */
+
+// Demo artwork
+import ThumbnailJustAPottedCactus from "@graphite-frontend/assets/images/demo-artwork/thumbnail-just-a-potted-cactus.png";
+import ThumbnailValleyOfSpires from "@graphite-frontend/assets/images/demo-artwork/thumbnail-valley-of-spires.png";
+
+const DEMO_ARTWORK = {
+	ThumbnailJustAPottedCactus,
+	ThumbnailValleyOfSpires,
+} as const;
+
+// All images
+const IMAGE_LIST = {
+	...DEMO_ARTWORK,
+} as const;
+
+// Exported images and types
+export const IMAGES: ImageDefinitionType<typeof IMAGE_LIST> = IMAGE_LIST;
+export const IMAGE_BASE64_STRINGS = Object.fromEntries(Object.entries(IMAGES).map(([name, data]) => [name, data]));
+
+// See `icons.ts` for explanation about how this works
+type EvaluateType<T> = T extends infer O ? { [K in keyof O]: O[K] } : never;
+type ImageDefinitionType<T extends Record<string, string>> = EvaluateType<{ [key in keyof T]: string }>;