diff --git a/src/public/app/widgets/type_widgets/options/advanced/database_anonymization.ts b/src/public/app/widgets/type_widgets/options/advanced/database_anonymization.ts
index 1b17253ea..eea1f712a 100644
--- a/src/public/app/widgets/type_widgets/options/advanced/database_anonymization.ts
+++ b/src/public/app/widgets/type_widgets/options/advanced/database_anonymization.ts
@@ -15,7 +15,7 @@ const TPL = `
             <h5>${t("database_anonymization.full_anonymization")}</h5>
 
             <p>${t("database_anonymization.full_anonymization_description")}</p>
-            <button class="anonymize-full-button btn">${t("database_anonymization.save_fully_anonymized_database")}</button>
+            <button class="anonymize-full-button btn btn-primary">${t("database_anonymization.save_fully_anonymized_database")}</button>
         </div>
 
         <div class="col-md-6">
@@ -23,7 +23,7 @@ const TPL = `
 
             <p>${t("database_anonymization.light_anonymization_description")}</p>
 
-            <button class="anonymize-light-button btn">${t("database_anonymization.save_lightly_anonymized_database")}</button>
+            <button class="anonymize-light-button btn btn-primary">${t("database_anonymization.save_lightly_anonymized_database")}</button>
         </div>
     </div>
 
diff --git a/src/public/app/widgets/type_widgets/options/advanced/database_integrity_check.ts b/src/public/app/widgets/type_widgets/options/advanced/database_integrity_check.ts
index ecd9c3b95..0cabd2d6f 100644
--- a/src/public/app/widgets/type_widgets/options/advanced/database_integrity_check.ts
+++ b/src/public/app/widgets/type_widgets/options/advanced/database_integrity_check.ts
@@ -9,8 +9,8 @@ const TPL = `
 
     <p>${t("database_integrity_check.description")}</p>
 
-    <button class="check-integrity-button btn">${t("database_integrity_check.check_button")}</button>
-    <button class="find-and-fix-consistency-issues-button btn">${t("consistency_checks.find_and_fix_button")}</button>
+    <button class="check-integrity-button btn btn-primary">${t("database_integrity_check.check_button")}</button>
+    <button class="find-and-fix-consistency-issues-button btn btn-secondary">${t("consistency_checks.find_and_fix_button")}</button>
 </div>
 `;
 
diff --git a/src/public/app/widgets/type_widgets/options/advanced/sync.ts b/src/public/app/widgets/type_widgets/options/advanced/sync.ts
index a98a7d6c9..5dedaaf82 100644
--- a/src/public/app/widgets/type_widgets/options/advanced/sync.ts
+++ b/src/public/app/widgets/type_widgets/options/advanced/sync.ts
@@ -7,9 +7,9 @@ import type { OptionMap } from "../../../../../../services/options_interface.js"
 const TPL = `
 <div class="options-section">
     <h4>${t("sync.title")}</h4>
-    <button class="force-full-sync-button btn">${t("sync.force_full_sync_button")}</button>
+    <button class="force-full-sync-button btn btn-primary">${t("sync.force_full_sync_button")}</button>
 
-    <button class="fill-entity-changes-button btn">${t("sync.fill_entity_changes_button")}</button>
+    <button class="fill-entity-changes-button btn btn-secondary">${t("sync.fill_entity_changes_button")}</button>
 </div>`;
 
 export default class AdvancedSyncOptions extends OptionsWidget {
diff --git a/src/public/app/widgets/type_widgets/options/advanced/vacuum_database.ts b/src/public/app/widgets/type_widgets/options/advanced/vacuum_database.ts
index f4b007e61..d590ec8c2 100644
--- a/src/public/app/widgets/type_widgets/options/advanced/vacuum_database.ts
+++ b/src/public/app/widgets/type_widgets/options/advanced/vacuum_database.ts
@@ -9,7 +9,7 @@ const TPL = `
 
     <p>${t("vacuum_database.description")}</p>
 
-    <button class="vacuum-database-button btn">${t("vacuum_database.button_text")}</button>
+    <button class="vacuum-database-button btn btn-primary">${t("vacuum_database.button_text")}</button>
 </div>`;
 
 export default class VacuumDatabaseOptions extends OptionsWidget {
diff --git a/src/public/app/widgets/type_widgets/options/appearance/fonts.ts b/src/public/app/widgets/type_widgets/options/appearance/fonts.ts
index fe6327ad3..a649f24f8 100644
--- a/src/public/app/widgets/type_widgets/options/appearance/fonts.ts
+++ b/src/public/app/widgets/type_widgets/options/appearance/fonts.ts
@@ -132,7 +132,7 @@ const TPL = `
 
     <p>
         ${t("fonts.apply_font_changes")}
-        <button class="btn btn-micro reload-frontend-button">${t("fonts.reload_frontend")}</button>
+        <button class="btn btn-primary btn-micro reload-frontend-button">${t("fonts.reload_frontend")}</button>
     </p>
 </div>`;
 
diff --git a/src/public/app/widgets/type_widgets/options/appearance/max_content_width.ts b/src/public/app/widgets/type_widgets/options/appearance/max_content_width.ts
index f93642641..d29445023 100644
--- a/src/public/app/widgets/type_widgets/options/appearance/max_content_width.ts
+++ b/src/public/app/widgets/type_widgets/options/appearance/max_content_width.ts
@@ -20,7 +20,7 @@ const TPL = `
 
     <p>
         ${t("max_content_width.apply_changes_description")}
-        <button class="btn btn-micro reload-frontend-button">${t("max_content_width.reload_button")}</button>
+        <button class="btn btn-primary btn-micro reload-frontend-button">${t("max_content_width.reload_button")}</button>
     </p>
 </div>`;
 
diff --git a/src/public/app/widgets/type_widgets/options/backup.ts b/src/public/app/widgets/type_widgets/options/backup.ts
index 6b4431817..48e6f1499 100644
--- a/src/public/app/widgets/type_widgets/options/backup.ts
+++ b/src/public/app/widgets/type_widgets/options/backup.ts
@@ -38,7 +38,7 @@ const TPL = `
 <div class="options-section">
     <h4>${t("backup.backup_now")}</h4>
 
-    <button class="backup-database-button btn">${t("backup.backup_database_now")}</button>
+    <button class="backup-database-button btn btn-primary">${t("backup.backup_database_now")}</button>
 </div>
 
 <div class="options-section">
diff --git a/src/public/app/widgets/type_widgets/options/other/attachment_erasure_timeout.ts b/src/public/app/widgets/type_widgets/options/other/attachment_erasure_timeout.ts
index 53f968861..090606fc0 100644
--- a/src/public/app/widgets/type_widgets/options/other/attachment_erasure_timeout.ts
+++ b/src/public/app/widgets/type_widgets/options/other/attachment_erasure_timeout.ts
@@ -17,7 +17,7 @@ const TPL = `
 
     <p>${t("attachment_erasure_timeout.manual_erasing_description")}</p>
 
-    <button class="erase-unused-attachments-now-button btn">${t("attachment_erasure_timeout.erase_unused_attachments_now")}</button>
+    <button class="erase-unused-attachments-now-button btn btn-primary">${t("attachment_erasure_timeout.erase_unused_attachments_now")}</button>
 </div>`;
 
 export default class AttachmentErasureTimeoutOptions extends OptionsWidget {
diff --git a/src/public/app/widgets/type_widgets/options/other/note_erasure_timeout.ts b/src/public/app/widgets/type_widgets/options/other/note_erasure_timeout.ts
index ee6693f80..868d13c4e 100644
--- a/src/public/app/widgets/type_widgets/options/other/note_erasure_timeout.ts
+++ b/src/public/app/widgets/type_widgets/options/other/note_erasure_timeout.ts
@@ -17,7 +17,7 @@ const TPL = `
 
     <p>${t("note_erasure_timeout.manual_erasing_description")}</p>
 
-    <button class="erase-deleted-notes-now-button btn">${t("note_erasure_timeout.erase_deleted_notes_now")}</button>
+    <button class="erase-deleted-notes-now-button btn btn-primary">${t("note_erasure_timeout.erase_deleted_notes_now")}</button>
 </div>`;
 
 export default class NoteErasureTimeoutOptions extends OptionsWidget {
diff --git a/src/public/app/widgets/type_widgets/options/other/revision_snapshots_limit.ts b/src/public/app/widgets/type_widgets/options/other/revision_snapshots_limit.ts
index 7ff133733..835c0a939 100644
--- a/src/public/app/widgets/type_widgets/options/other/revision_snapshots_limit.ts
+++ b/src/public/app/widgets/type_widgets/options/other/revision_snapshots_limit.ts
@@ -15,7 +15,7 @@ const TPL = `
         <input class="revision-snapshot-number-limit form-control options-number-input" type="number" min="-1">
     </div>
 
-    <button class="erase-excess-revision-snapshots-now-button btn btn-sm" style="padding: 0 10px">
+    <button class="erase-excess-revision-snapshots-now-button btn btn-sm">
                     ${t("revisions_snapshot_limit.erase_excess_revision_snapshots")}</button>
 </div>`;
 
diff --git a/src/public/app/widgets/type_widgets/options/shortcuts.ts b/src/public/app/widgets/type_widgets/options/shortcuts.ts
index e09219972..c8ddf6c0f 100644
--- a/src/public/app/widgets/type_widgets/options/shortcuts.ts
+++ b/src/public/app/widgets/type_widgets/options/shortcuts.ts
@@ -56,7 +56,7 @@ const TPL = `
     <div class="shortcuts-options-buttons">
         <button class="options-keyboard-shortcuts-reload-app btn btn-primary">${t("shortcuts.reload_app")}</button>
 
-        <button class="options-keyboard-shortcuts-set-all-to-default btn">${t("shortcuts.set_all_to_default")}</button>
+        <button class="options-keyboard-shortcuts-set-all-to-default btn btn-secondary">${t("shortcuts.set_all_to_default")}</button>
     </div>
 </div>`;
 
diff --git a/src/public/app/widgets/type_widgets/options/sync.ts b/src/public/app/widgets/type_widgets/options/sync.ts
index 6317c3147..57430f8d6 100644
--- a/src/public/app/widgets/type_widgets/options/sync.ts
+++ b/src/public/app/widgets/type_widgets/options/sync.ts
@@ -30,7 +30,7 @@ const TPL = `
         <div style="display: flex; justify-content: space-between;">
             <button class="btn btn-primary">${t("sync_2.save")}</button>
 
-            <button class="btn" type="button" data-help-page="synchronization.html">${t("sync_2.help")}</button>
+            <button class="btn btn-secondary" type="button" data-help-page="synchronization.html">${t("sync_2.help")}</button>
         </div>
     </form>
 </div>
@@ -40,7 +40,7 @@ const TPL = `
 
     <p>${t("sync_2.test_description")}</p>
 
-    <button class="test-sync-button btn">${t("sync_2.test_button")}</button>
+    <button class="test-sync-button btn btn-primary">${t("sync_2.test_button")}</button>
 </div>`;
 
 // TODO: Deduplicate