Resolve "Improve colors of graphs"

Closes #16 (closed)

aleksis/apps/evalu/models.py

@@ -642,21 +642,21 @@ class Answer(models.IntegerChoices):
     @classproperty
     def background_colors(cls) -> Dict[int, str]:  # noqa
         return {
-            1: "rgba(75, 192, 192, 0.2)",
-            2: "rgba(255, 205, 86, 0.2)",
-            3: "rgba(255, 159, 64, 0.2)",  # FIXME
-            4: "rgba(255, 159, 64, 0.2)",
-            5: "rgba(255, 99, 132, 0.2)",
+            1: "#88bf4a",
+            2: "#bbd154",
+            3: "#efe258",
+            4: "#f29e58",
+            5: "#eb595a",
         }
 
     @classproperty
     def border_colors(cls) -> Dict[int, str]:  # noqa
         return {
-            1: "rgb(75, 192, 192)",
-            2: "rgb(255, 205, 86)",
-            3: "rgb(255, 159, 64)",  # FIXME
-            4: "rgb(255, 159, 64)",
-            5: "rgb(255, 99, 132)",
+            1: "#88bf4a",
+            2: "#bbd154",
+            3: "#efe258",
+            4: "#f29e58",
+            5: "#eb595a",
         }