List-of-Plugins.md

@@ -70,3 +70,12 @@ Various new fields, alphabetically ordered by gem name.
 | [`administrate-field-type`](https://github.com/fishpercolator/administrate-field-type) | Adds an Administrate::Field::Type for allowing the selection of an **STI subtype** in dashboards. |
 | [`administrate-field-unixtime`](https://github.com/potato2003/administrate-field-unixtime) | A plugin to show and edit **unixtime** field within Administrate. |
 | [`administrate-field-ordered_has_many`](https://github.com/coderedcode/administrate-field-ordered_has_many) | A plugin to show and edit ordered `has_many` associations in Administrate. |
+
+## Themes & UI
+
+UI plugins, alphabetically ordered by gem name.
+
+| gem | description |
+|-----|-------------|
+| [`administrate-bootstrap`](https://github.com/jkpchang/administrate-bootstrap) | Rails administrate admin engine, with Bootstrap styling and several custom fields. |
+| [`administrate-materialize-theme`](https://github.com/blocknotes/administrate-materialize-theme) | A Material theme for Administrate based on Materialize framework |
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