fix(image): source can accept resource paths, color tints the image

Author: ProGM

src/content/reference/components/image.md

@@ -20,5 +20,9 @@ export default function App() {
 
 ### Properties
 
-- **source**: Source of the image. Can be a url, the `Texture2D` object or the `Sprite` object.
+- **source**: Source of the image. Can be a url, a resource path (e.g. 'res:/path/to/file'), the `Texture2D` object or the `Sprite` object.
 - **fit**: Determines how to position the image inside the element.
+
+### Notes
+
+- The css `color` property can be used to tint the image.