show current subject inside assignment details page as a pill

lib/subjectColors.ts

@@ -50,4 +50,9 @@ export const SUBJECT_COLORS: Record<
 
 export const SUBJECT_COLOR_KEYS = Object.keys(
   SUBJECT_COLORS
-) as SubjectColor[];
+) as SubjectColor[];
+
+export const getSubjectColorSet = (color?: SubjectColor) => {
+  const colorKey: SubjectColor = color ?? 'slate';
+  return SUBJECT_COLORS[colorKey];
+};