Keep the map legend readable

Long biome names now shorten instead of pushing the percentages out of
the legend, and biomes that share a display name show their key. The
highlight edge tints instead of drawing solid white, which turned
biomes scattered pixel by pixel into noise.

Model used: Claude Opus 5.5

core/src/main/java/com/volmit/iris/core/gui/MapLegendPanel.java

@@ -37,8 +37,10 @@ import java.awt.Rectangle;
 import java.awt.RenderingHints;
 import java.awt.event.MouseAdapter;
 import java.awt.event.MouseEvent;
+import java.util.HashSet;
 import java.util.List;
 import java.util.Locale;
+import java.util.Set;
 import java.util.function.Consumer;
 
 /**
@@ -56,7 +58,14 @@ final class MapLegendPanel extends JPanel {
 
     private final JLabel title = new JLabel();
     private final DefaultListModel<MapCensus.Share> rows = new DefaultListModel<>();
-    private final JList<MapCensus.Share> list = new JList<>(rows);
+    private final JList<MapCensus.Share> list = new JList<>(rows) {
+        // Long names shorten with an ellipsis instead of pushing the percentages out of sight.
+        @Override
+        public boolean getScrollableTracksViewportWidth() {
+            return true;
+        }
+    };
+    private final Set<String> sharedNames = new HashSet<>();
     private MapStyle.Highlight highlight;
 
     MapLegendPanel(Consumer<MapCensus.Share> onRowClicked) {
@@ -97,6 +106,7 @@ final class MapLegendPanel extends JPanel {
     void show(String subjectTitle, List<MapCensus.Share> shares, MapStyle.Highlight nextHighlight) {
         title.setText(subjectTitle.toUpperCase(Locale.ROOT));
         highlight = nextHighlight;
+        rememberSharedNames(shares);
         if (!sameRows(shares)) {
             rows.clear();
             rows.addAll(shares);
@@ -104,6 +114,22 @@ final class MapLegendPanel extends JPanel {
         list.repaint();
     }
 
+    // Two biomes can share a display name; those rows show their key so they can be told apart.
+    private void rememberSharedNames(List<MapCensus.Share> shares) {
+        Set<String> seen = new HashSet<>();
+        sharedNames.clear();
+        for (MapCensus.Share share : shares) {
+            if (!seen.add(share.label().name())) {
+                sharedNames.add(share.label().name());
+            }
+        }
+    }
+
+    private String rowText(MapCensus.Share share) {
+        String name = share.label().name();
+        return sharedNames.contains(name) ? name + " (" + share.label().key() + ")" : name;
+    }
+
     private boolean sameRows(List<MapCensus.Share> shares) {
         if (rows.size() != shares.size()) {
             return false;
@@ -157,7 +183,7 @@ final class MapLegendPanel extends JPanel {
         @Override
         public Component getListCellRendererComponent(JList<?> owner, Object value, int index, boolean selected, boolean focused) {
             MapCensus.Share share = (MapCensus.Share) value;
-            super.getListCellRendererComponent(owner, share.label().name(), index, isHighlighted(share), false);
+            super.getListCellRendererComponent(owner, rowText(share), index, isHighlighted(share), false);
             setFont(StudioTheme.font());
             setBorder(StudioTheme.emptyBorder(0, ROW_PADDING + SWATCH_SIZE + SWATCH_GAP, 0, ROW_PADDING + PERCENT_WIDTH));
             setToolTipText(share.label().key());

core/src/main/java/com/volmit/iris/core/gui/components/MapTile.java

@@ -41,6 +41,8 @@ public final class MapTile {
     private static final double DIM_AMOUNT = 0.72D;
     private static final double DIM_DESATURATION = 0.6D;
     private static final int HIGHLIGHT_EDGE = 0xFFFFFF;
+    // A solid outline turns biomes that are scattered pixel by pixel into white noise, so the edge only tints.
+    private static final double HIGHLIGHT_EDGE_STRENGTH = 0.55D;
     private static final int REGION_BORDER = 0x101114;
     private static final double REGION_BORDER_STRENGTH = 0.6D;
 
@@ -168,7 +170,7 @@ public final class MapTile {
                 || grid[gridIndex(pixelX - 1, pixelZ)] != highlighted
                 || grid[gridIndex(pixelX, pixelZ + 1)] != highlighted
                 || grid[gridIndex(pixelX, pixelZ - 1)] != highlighted;
-        return edge ? HIGHLIGHT_EDGE : color;
+        return edge ? blend(color, HIGHLIGHT_EDGE, HIGHLIGHT_EDGE_STRENGTH) : color;
     }
 
     private boolean isRegionEdge(int pixelX, int pixelZ) {