fixed subject icon things

filcnaplo_mobile_ui/lib/common/widgets/exam/exam_tile.dart

@@ -32,7 +32,7 @@ class ExamTile extends StatelessWidget {
                 padding: const EdgeInsets.only(top: 2.0),
                 child: Icon(
                   SubjectIcon.resolveVariant(
-                      subjectName: exam.subject.name, context: context),
+                      subject: exam.subject, context: context),
                   size: 28.0,
                   color: AppColors.of(context).text.withOpacity(.75),
                 ),

filcnaplo_mobile_ui/lib/common/widgets/exam/exam_view.dart

@@ -29,7 +29,7 @@ class ExamView extends StatelessWidget {
               padding: const EdgeInsets.only(left: 6.0),
               child: Icon(
                 SubjectIcon.resolveVariant(
-                    subjectName: exam.subject.name, context: context),
+                    subject: exam.subject, context: context),
                 size: 36.0,
                 color: AppColors.of(context).text.withOpacity(.75),
               ),

filcnaplo_mobile_ui/lib/common/widgets/homework/homework_tile.dart

@@ -46,7 +46,7 @@ class HomeworkTile extends StatelessWidget {
                     padding: const EdgeInsets.only(top: 2.0),
                     child: Icon(
                       SubjectIcon.resolveVariant(
-                          subjectName: homework.subject.name, context: context),
+                          subject: homework.subject, context: context),
                       size: 28.0,
                       color: AppColors.of(context).text.withOpacity(.75),
                     ),
@@ -69,7 +69,12 @@ class HomeworkTile extends StatelessWidget {
                   homework.subject.renamedTo ?? homework.subject.name.capital(),
                   maxLines: 2,
                   overflow: TextOverflow.ellipsis,
-                  style: TextStyle(fontWeight: FontWeight.w600, fontStyle: homework.subject.isRenamed && settingsProvider.renamedSubjectsItalics ? FontStyle.italic : null),
+                  style: TextStyle(
+                      fontWeight: FontWeight.w600,
+                      fontStyle: homework.subject.isRenamed &&
+                              settingsProvider.renamedSubjectsItalics
+                          ? FontStyle.italic
+                          : null),
                 ),
           subtitle: censored
               ? Wrap(

filcnaplo_mobile_ui/lib/common/widgets/homework/homework_view.dart

@@ -44,7 +44,7 @@ class HomeworkView extends StatelessWidget {
           ListTile(
             leading: Icon(
               SubjectIcon.resolveVariant(
-                  subjectName: homework.subject.name, context: context),
+                  subject: homework.subject, context: context),
               size: 36.0,
             ),
             title: Text(