Fix new map colors rendering as transparent

By: DerFrZocker <derrieple@gmail.com>

paper-server/src/main/java/org/bukkit/craftbukkit/map/CraftMapView.java

@@ -164,8 +164,8 @@ public final class CraftMapView implements MapView {
             byte[] buf = canvas.getBuffer();
             for (int i = 0; i < buf.length; ++i) {
                 byte color = buf[i];
-                // There are 208 valid color id's, 0 -> 127 and -128 -> -49
-                if (color >= 0 || color <= -21) render.buffer[i] = color;
+                // There are 248 valid color id's, 0 -> 127 and -128 -> -9
+                if (color >= 0 || color <= -9) render.buffer[i] = color;
             }
 
             for (int i = 0; i < canvas.getCursors().size(); ++i) {

paper-server/src/test/java/org/bukkit/map/MapTest.java

@@ -34,7 +34,7 @@ public class MapTest {
                     int mr = (r * modi) / 255;
                     int mg = (g * modi) / 255;
                     int mb = (b * modi) / 255;
-                    logger.log(Level.WARNING, "Missing color: c({0}, {1}, {2})", new Object[]{mr, mg, mb});
+                    logger.log(Level.WARNING, "Missing color (check CraftMapView#render): c({0}, {1}, {2})", new Object[]{mr, mg, mb});
                 }
                 fail = true;
             } else {