automaticly change the background type when user actively change the value of color or panorama in example page (#208)

Author: undefined303

examples/main.ts

@@ -130,7 +130,9 @@ function reloadEars(skipSkinReload = false): void {
 
 function reloadPanorama(): void {
 	const input = document.getElementById("panorama_url") as HTMLInputElement;
+	const backgroundTypeInput = document.getElementById("background_type") as HTMLSelectElement;
 	const url = obtainTextureUrl("panorama_url");
+	backgroundTypeInput.value = "panorama";
 	if (url === "") {
 		skinViewer.background = null;
 		input?.setCustomValidity("");
@@ -439,7 +441,10 @@ function initializeControls(): void {
 	const backgroundColor = document.getElementById("background_color") as HTMLInputElement;
 
 	backgroundType?.addEventListener("change", updateBackground);
-	backgroundColor?.addEventListener("change", updateBackground);
+	backgroundColor?.addEventListener("change", () => {
+		backgroundType.value = "color";
+		updateBackground();
+	});
 
 	// Set panorama as default
 	if (backgroundType) {