Added list of contributors

.sonarcloud.properties

@@ -10,7 +10,7 @@ sonar.tests=src/test/java
 sonar.java.source=21
 
 # Exclusions
-sonar.exclusions=**/generated/**,**/target/**
+sonar.exclusions=**/generated/**,**/target/**,**/src/main/resources/styles/*.css
 sonar.test.exclusions=**/test/**
 
 # Source encoding

src/main/java/com/dinosaur/dinosaurexploder/model/GitHubContributor.java

@@ -0,0 +1,46 @@
+package com.dinosaur.dinosaurexploder.model;
+
+/**
+ * Model class representing a GitHub contributor. Immutable data object following clean architecture
+ * principles.
+ */
+public class GitHubContributor {
+  private final String login;
+  private final String avatarUrl;
+  private final int contributions;
+  private final String htmlUrl;
+
+  public GitHubContributor(String login, String avatarUrl, int contributions, String htmlUrl) {
+    this.login = login;
+    this.avatarUrl = avatarUrl;
+    this.contributions = contributions;
+    this.htmlUrl = htmlUrl;
+  }
+
+  public String getLogin() {
+    return login;
+  }
+
+  public String getAvatarUrl() {
+    return avatarUrl;
+  }
+
+  public int getContributions() {
+    return contributions;
+  }
+
+  public String getHtmlUrl() {
+    return htmlUrl;
+  }
+
+  @Override
+  public String toString() {
+    return "GitHubContributor{"
+        + "login='"
+        + login
+        + '\''
+        + ", contributions="
+        + contributions
+        + '}';
+  }
+}

src/main/java/com/dinosaur/dinosaurexploder/utils/GitHubProvider.java

@@ -0,0 +1,96 @@
+package com.dinosaur.dinosaurexploder.utils;
+
+import com.dinosaur.dinosaurexploder.model.GitHubContributor;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+import java.net.HttpURLConnection;
+import java.net.URL;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Service provider for fetching GitHub repository contributors. Handles asynchronous API
+ * communication with proper error handling.
+ */
+public class GitHubProvider {
+  private static final Logger LOGGER = Logger.getLogger(GitHubProvider.class.getName());
+  private static final String GITHUB_API_URL =
+      "https://api.github.com/repos/jvondermarck/dinosaur-exploder/contributors";
+  private static final int TIMEOUT_MS = 10000;
+
+  private final ObjectMapper objectMapper;
+
+  public GitHubProvider() {
+    this.objectMapper = new ObjectMapper();
+  }
+
+  public CompletableFuture<List<GitHubContributor>> fetchContributorsAsync() {
+    return CompletableFuture.supplyAsync(this::fetchContributors);
+  }
+
+  private List<GitHubContributor> fetchContributors() {
+    List<GitHubContributor> contributors = new ArrayList<>();
+
+    try {
+      URL url = new URL(GITHUB_API_URL);
+      HttpURLConnection connection = (HttpURLConnection) url.openConnection();
+      connection.setRequestMethod("GET");
+      connection.setConnectTimeout(TIMEOUT_MS);
+      connection.setReadTimeout(TIMEOUT_MS);
+      connection.setRequestProperty("Accept", "application/vnd.github.v3+json");
+      connection.setRequestProperty("User-Agent", "Dinosaur-Exploder-Game");
+
+      int responseCode = connection.getResponseCode();
+
+      if (responseCode == HttpURLConnection.HTTP_OK) {
+        try (BufferedReader reader =
+            new BufferedReader(new InputStreamReader(connection.getInputStream()))) {
+          StringBuilder response = new StringBuilder();
+          String line;
+          while ((line = reader.readLine()) != null) {
+            response.append(line);
+          }
+
+          contributors = parseContributors(response.toString());
+          LOGGER.log(Level.INFO, "Successfully fetched {0} contributors", contributors.size());
+        }
+      } else {
+        LOGGER.log(Level.WARNING, "GitHub API returned response code: {0}", responseCode);
+      }
+
+      connection.disconnect();
+
+    } catch (Exception e) {
+      LOGGER.log(Level.SEVERE, "Error fetching contributors from GitHub API", e);
+    }
+
+    return contributors;
+  }
+
+  private List<GitHubContributor> parseContributors(String jsonResponse) {
+    List<GitHubContributor> contributors = new ArrayList<>();
+
+    try {
+      JsonNode rootNode = objectMapper.readTree(jsonResponse);
+
+      for (JsonNode node : rootNode) {
+        String login = node.get("login").asText();
+        String avatarUrl = node.get("avatar_url").asText();
+        int contributions = node.get("contributions").asInt();
+        String htmlUrl = node.get("html_url").asText();
+
+        contributors.add(new GitHubContributor(login, avatarUrl, contributions, htmlUrl));
+      }
+
+    } catch (Exception e) {
+      LOGGER.log(Level.SEVERE, "Error parsing contributor JSON", e);
+    }
+
+    return contributors;
+  }
+}

src/main/java/com/dinosaur/dinosaurexploder/utils/MenuHelper.java

@@ -7,14 +7,18 @@
 import com.dinosaur.dinosaurexploder.constants.GameConstants;
 import java.io.InputStream;
 import java.util.Objects;
+import javafx.animation.FadeTransition;
+import javafx.animation.Interpolator;
 import javafx.animation.TranslateTransition;
 import javafx.geometry.Pos;
 import javafx.scene.control.Button;
 import javafx.scene.effect.ColorAdjust;
+import javafx.scene.effect.DropShadow;
 import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
 import javafx.scene.layout.VBox;
 import javafx.scene.paint.Color;
+import javafx.scene.text.Text;
 import javafx.scene.text.TextFlow;
 import javafx.util.Duration;
 
@@ -117,4 +121,46 @@ public static void setupSelectionMenu(
 
     menu.getContentRoot().getChildren().addAll(background, container);
   }
+
+  public static Text createSubtitle(String text, double wrapWidth, boolean animated) {
+    Text subtitle =
+        getUIFactoryService()
+            .newText(text, Color.rgb(0, 255, 100), FontType.MONO, GameConstants.TEXT_SUB_DETAILS);
+
+    subtitle.setWrappingWidth(wrapWidth);
+    subtitle.setTextAlignment(javafx.scene.text.TextAlignment.CENTER);
+
+    DropShadow glow = new DropShadow();
+    glow.setColor(Color.rgb(0, 255, 100));
+    glow.setRadius(6);
+    glow.setSpread(0.25);
+    subtitle.setEffect(glow);
+
+    if (animated) {
+      FadeTransition pulse = new FadeTransition(Duration.seconds(2.2), subtitle);
+      pulse.setFromValue(0.8);
+      pulse.setToValue(1.0);
+      pulse.setCycleCount(FadeTransition.INDEFINITE);
+      pulse.setAutoReverse(true);
+      pulse.setInterpolator(Interpolator.EASE_BOTH);
+      pulse.play();
+    }
+
+    return subtitle;
+  }
+
+  public static Button createStyledButton(String text) {
+    Button button = new Button(text.toUpperCase());
+    button.setMinSize(140, 60);
+    applyButtonStyle(button);
+    return button;
+  }
+
+  public static void applyButtonStyle(Button button) {
+    button
+        .getStylesheets()
+        .add(
+            Objects.requireNonNull(MenuHelper.class.getResource(GameConstants.STYLESHEET_PATH))
+                .toExternalForm());
+  }
 }