diff --git a/package.json b/package.json
index 1962d905..b6600bdd 100644
--- a/package.json
+++ b/package.json
@@ -67,7 +67,7 @@
     "@lumino/messaging": "^1.4.3",
     "@lumino/polling": "^1.0.4",
     "@lumino/signaling": "^1.4.3",
-    "@lumino/widgets": "^1.17.0",
+    "@lumino/widgets": "^2.3.0",
     "react": "~17.0.0",
     "react-dom": "~17.0.0"
   },
diff --git a/yarn.lock b/yarn.lock
index 92b95d28..22fa31b4 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -702,10 +702,10 @@
   resolved "https://registry.yarnpkg.com/@lumino/algorithm/-/algorithm-1.9.2.tgz#b95e6419aed58ff6b863a51bfb4add0f795141d3"
   integrity sha512-Z06lp/yuhz8CtIir3PNTGnuk7909eXt4ukJsCzChsGuot2l5Fbs96RJ/FOHgwCedaX74CtxPjXHXoszFbUA+4A==
 
-"@lumino/algorithm@^2.0.0":
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/@lumino/algorithm/-/algorithm-2.0.0.tgz#f36e4b6bf6d2b9bde66dc3162afc9a0d2ef47530"
-  integrity sha512-SwM/8U1zlMWMJj00wTCThdTUit9zap2Xghuo4uUxvZ+mfog5b1UIk2j1dP8TPpzEXHCDPEb85s2/ERo1tee3Dw==
+"@lumino/algorithm@^2.0.1":
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/@lumino/algorithm/-/algorithm-2.0.1.tgz#1045f4629f96076b431fc1a8c0005e13d8b95a56"
+  integrity sha512-iA+uuvA7DeNFB0/cQpIWNgO1c6z4pOSigifjstLy+rxf1U5ZzxIq+xudnEuTbWgKSTviG02j4cKwCyx1PO6rzA==
 
 "@lumino/application@^1.31.3":
   version "1.31.3"
@@ -723,6 +723,13 @@
   dependencies:
     "@lumino/algorithm" "^1.9.2"
 
+"@lumino/collections@^2.0.1":
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/@lumino/collections/-/collections-2.0.1.tgz#cfb9afa9837eddb72d1939e73dcd5256feaf37ef"
+  integrity sha512-8TbAU/48XVPKc/FOhGHLuugf2Gmx6vhVEx867KGG5fLwDOI8EW4gTno78yJUk8G0QpgNa+sdpB/LwbJFNIratg==
+  dependencies:
+    "@lumino/algorithm" "^2.0.1"
+
 "@lumino/commands@^1.19.0", "@lumino/commands@^1.21.1":
   version "1.21.1"
   resolved "https://registry.yarnpkg.com/@lumino/commands/-/commands-1.21.1.tgz#eda8b3cf5ef73b9c8ce93b3b5cf66bb053df2a76"
@@ -736,15 +743,28 @@
     "@lumino/signaling" "^1.11.1"
     "@lumino/virtualdom" "^1.14.3"
 
+"@lumino/commands@^2.1.3":
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/@lumino/commands/-/commands-2.1.3.tgz#8a0afc0c3dc0ddc3c56307b9aa1cddb1413482e2"
+  integrity sha512-F0ZYZDrfJzcPp4JqeQMC2dzi3XOobzNZD94qUJ6QBsbfghFRcPBM+rfOspghRvCEFHAZdtghw04wOp7VWgIczA==
+  dependencies:
+    "@lumino/algorithm" "^2.0.1"
+    "@lumino/coreutils" "^2.1.2"
+    "@lumino/disposable" "^2.1.2"
+    "@lumino/domutils" "^2.0.1"
+    "@lumino/keyboard" "^2.0.1"
+    "@lumino/signaling" "^2.1.2"
+    "@lumino/virtualdom" "^2.0.1"
+
 "@lumino/coreutils@^1.11.0", "@lumino/coreutils@^1.12.1", "@lumino/coreutils@^1.5.3":
   version "1.12.1"
   resolved "https://registry.yarnpkg.com/@lumino/coreutils/-/coreutils-1.12.1.tgz#79860c9937483ddf6cda87f6c2b9da8eb1a5d768"
   integrity sha512-JLu3nTHzJk9N8ohZ85u75YxemMrmDzJdNgZztfP7F7T7mxND3YVNCkJG35a6aJ7edu1sIgCjBxOvV+hv27iYvQ==
 
-"@lumino/coreutils@^1.11.0 || ^2.0.0-alpha.6", "@lumino/coreutils@^2.0.0":
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/@lumino/coreutils/-/coreutils-2.0.0.tgz#f7a82e616156bda83197ee4e176810af6799a27b"
-  integrity sha512-eMPssdjM/qYsX7AwX4gWI07ijzxDFyM7i8dT35YY7P6r0OeqIzmVruu/3RJhHfKoVJ/fINlS9B8EsOC81GMIGA==
+"@lumino/coreutils@^1.11.0 || ^2.0.0-alpha.6", "@lumino/coreutils@^2.1.2":
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/@lumino/coreutils/-/coreutils-2.1.2.tgz#354e658353e99969329c9ee33b0692ecd97abe1f"
+  integrity sha512-vyz7WzchTO4HQ8iVAxvSUmb5o/8t3cz1vBo8V4ZIaPGada0Jx0xe3tKQ8bXp4pjHc+AEhMnkCnlUyVYMWbnj4A==
 
 "@lumino/disposable@^1.10.0", "@lumino/disposable@^1.10.4":
   version "1.10.4"
@@ -754,18 +774,23 @@
     "@lumino/algorithm" "^1.9.2"
     "@lumino/signaling" "^1.11.1"
 
-"@lumino/disposable@^1.10.0 || ^2.0.0-alpha.6":
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/@lumino/disposable/-/disposable-2.0.0.tgz#6ad4927aaee03b8c55b870a8466fca5b759d5a1e"
-  integrity sha512-2PcwxbKU1xYd02wWCsk5F/Ufh/tbNAMb+zXJEOGcRPrgOihkIz3FEDtbhOVGuGw8FtYlisKIs1m+pq37LUHL6A==
+"@lumino/disposable@^1.10.0 || ^2.0.0-alpha.6", "@lumino/disposable@^2.1.2":
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/@lumino/disposable/-/disposable-2.1.2.tgz#a4df34a50d23e577051eee27c000fc9ad37f35bb"
+  integrity sha512-0qmB6zPt9+uj4SVMTfISn0wUOjYHahtKotwxDD5flfcscj2gsXaFCXO4Oqot1zcsZbg8uJmTUhEzAvFW0QhFNA==
   dependencies:
-    "@lumino/signaling" "^2.0.0"
+    "@lumino/signaling" "^2.1.2"
 
 "@lumino/domutils@^1.2.3", "@lumino/domutils@^1.8.0", "@lumino/domutils@^1.8.2":
   version "1.8.2"
   resolved "https://registry.yarnpkg.com/@lumino/domutils/-/domutils-1.8.2.tgz#d15cdbae12bea52852bbc13c4629360f9f05b7f5"
   integrity sha512-QIpMfkPJrs4GrWBuJf2Sn1fpyVPmvqUUAeD8xAQo8+4V5JAT0vUDLxZ9HijefMgNCi3+Bs8Z3lQwRCrz+cFP1A==
 
+"@lumino/domutils@^2.0.1":
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/@lumino/domutils/-/domutils-2.0.1.tgz#1852eadd2658cf754e17f2d0e5c18d1737a91530"
+  integrity sha512-tbcfhsdKH04AMjSgYAYGD2xE80YcjrqKnfMTeU2NHt4J294Hzxs1GvEmSMk5qJ3Bbgwx6Z4BbQ7apnFg8Gc6cA==
+
 "@lumino/dragdrop@^1.13.0", "@lumino/dragdrop@^1.14.5", "@lumino/dragdrop@^1.7.1":
   version "1.14.5"
   resolved "https://registry.yarnpkg.com/@lumino/dragdrop/-/dragdrop-1.14.5.tgz#1db76c8a01f74cb1b0428db6234e820bb58b93ba"
@@ -774,11 +799,24 @@
     "@lumino/coreutils" "^1.12.1"
     "@lumino/disposable" "^1.10.4"
 
+"@lumino/dragdrop@^2.1.3":
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/@lumino/dragdrop/-/dragdrop-2.1.3.tgz#09a5933caf5f4ca2bee764b4c36550d802186ecf"
+  integrity sha512-lETk7lu+8pMfufxWGL76Dfz8kO/44CgHua0zzaLMh/eK+sRQxghMAxqKAMrEw+6eDy7EsM59R3xuynhkLrxa2A==
+  dependencies:
+    "@lumino/coreutils" "^2.1.2"
+    "@lumino/disposable" "^2.1.2"
+
 "@lumino/keyboard@^1.8.2":
   version "1.8.2"
   resolved "https://registry.yarnpkg.com/@lumino/keyboard/-/keyboard-1.8.2.tgz#714dbe671f0718f516d1ec23188b31a9ccd82fb2"
   integrity sha512-Dy+XqQ1wXbcnuYtjys5A0pAqf4SpAFl9NY6owyIhXAo0Va7w3LYp3jgiP1xAaBAwMuUppiUAfrbjrysZuZ625g==
 
+"@lumino/keyboard@^2.0.1":
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/@lumino/keyboard/-/keyboard-2.0.1.tgz#a16db961e29a94f87b2669c989b2b358590ce1f6"
+  integrity sha512-R2mrH9HCEcv/0MSAl7bEUbjCNOnhrg49nXZBEVckg//TEG+sdayCsyrbJNMPcZ07asIPKc6mq3v7DpAmDKqh+w==
+
 "@lumino/messaging@^1.10.0", "@lumino/messaging@^1.10.3", "@lumino/messaging@^1.4.3":
   version "1.10.3"
   resolved "https://registry.yarnpkg.com/@lumino/messaging/-/messaging-1.10.3.tgz#b6227bdfc178a8542571625ecb68063691b6af3c"
@@ -787,6 +825,14 @@
     "@lumino/algorithm" "^1.9.2"
     "@lumino/collections" "^1.9.3"
 
+"@lumino/messaging@^2.0.1":
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/@lumino/messaging/-/messaging-2.0.1.tgz#5ef321ed090b74b821d2a0de02493a2f9f3c21f7"
+  integrity sha512-Z1b9Sq7i2yw7BN/u9ezoBUMYK06CsQXO7BqpczSnEO0PfwFf9dWi7y9VcIySOBz9uogsT1uczZMIMtLefk+xPQ==
+  dependencies:
+    "@lumino/algorithm" "^2.0.1"
+    "@lumino/collections" "^2.0.1"
+
 "@lumino/polling@^1.0.4", "@lumino/polling@^1.9.0":
   version "1.11.4"
   resolved "https://registry.yarnpkg.com/@lumino/polling/-/polling-1.11.4.tgz#ddfe47da5b41af4cfa474898542c099e445c0e6c"
@@ -801,6 +847,11 @@
   resolved "https://registry.yarnpkg.com/@lumino/properties/-/properties-1.8.2.tgz#91131f2ca91a902faa138771eb63341db78fc0fd"
   integrity sha512-EkjI9Cw8R0U+xC9HxdFSu7X1tz1H1vKu20cGvJ2gU+CXlMB1DvoYJCYxCThByHZ+kURTAap4SE5x8HvKwNPbig==
 
+"@lumino/properties@^2.0.1":
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/@lumino/properties/-/properties-2.0.1.tgz#349407042df99d94943798078454dc11a327684b"
+  integrity sha512-RPtHrp8cQqMnTC915lOIdrmsbPDCC7PhPOZb2YY7/Jj6dEdwmGhoMthc2tBEYWoHP+tU/hVm8UR/mEQby22srQ==
+
 "@lumino/signaling@^1.10.0", "@lumino/signaling@^1.11.1", "@lumino/signaling@^1.4.3":
   version "1.11.1"
   resolved "https://registry.yarnpkg.com/@lumino/signaling/-/signaling-1.11.1.tgz#438f447a1b644fd286549804f9851b5aec9679a2"
@@ -809,13 +860,13 @@
     "@lumino/algorithm" "^1.9.2"
     "@lumino/properties" "^1.8.2"
 
-"@lumino/signaling@^1.10.0 || ^2.0.0-alpha.6", "@lumino/signaling@^2.0.0":
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/@lumino/signaling/-/signaling-2.0.0.tgz#56ad85d966719adde7532c2888f3c73562de5c86"
-  integrity sha512-v5VRG4asmrVV5yy9rrpZgS5s9djkLbnmI60dVFXIbMWKyNUziVaUB9SkMzsCOOF6b9IKxXVdrMxjcieX7F9qfA==
+"@lumino/signaling@^1.10.0 || ^2.0.0-alpha.6", "@lumino/signaling@^2.1.2":
+  version "2.1.2"
+  resolved "https://registry.yarnpkg.com/@lumino/signaling/-/signaling-2.1.2.tgz#b5f127463165884174f1446e8364794af831a852"
+  integrity sha512-KtwKxx+xXkLOX/BdSqtvnsqBTPKDIENFBKeYkMTxstQc3fHRmyTzmaVoeZES+pr1EUy3e8vM4pQFVQpb8VsDdA==
   dependencies:
-    "@lumino/algorithm" "^2.0.0"
-    "@lumino/coreutils" "^2.0.0"
+    "@lumino/algorithm" "^2.0.1"
+    "@lumino/coreutils" "^2.1.2"
 
 "@lumino/virtualdom@^1.14.0", "@lumino/virtualdom@^1.14.3":
   version "1.14.3"
@@ -824,7 +875,14 @@
   dependencies:
     "@lumino/algorithm" "^1.9.2"
 
-"@lumino/widgets@^1.17.0", "@lumino/widgets@^1.37.1", "@lumino/widgets@^1.37.2":
+"@lumino/virtualdom@^2.0.1":
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/@lumino/virtualdom/-/virtualdom-2.0.1.tgz#335e0e8758f21908a67f66b43f8dec177bcd6133"
+  integrity sha512-WNM+uUZX7vORhlDRN9NmhEE04Tz1plDjtbwsX+i/51pQj2N2r7+gsVPY/gR4w+I5apmC3zG8/BojjJYIwi8ogA==
+  dependencies:
+    "@lumino/algorithm" "^2.0.1"
+
+"@lumino/widgets@^1.37.1", "@lumino/widgets@^1.37.2":
   version "1.37.2"
   resolved "https://registry.yarnpkg.com/@lumino/widgets/-/widgets-1.37.2.tgz#b408fae221ecec2f1b028607782fbe1e82588bce"
   integrity sha512-NHKu1NBDo6ETBDoNrqSkornfUCwc8EFFzw6+LWBfYVxn2PIwciq2SdiJGEyNqL+0h/A9eVKb5ui5z4cwpRekmQ==
@@ -841,6 +899,23 @@
     "@lumino/signaling" "^1.11.1"
     "@lumino/virtualdom" "^1.14.3"
 
+"@lumino/widgets@^2.3.0":
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/@lumino/widgets/-/widgets-2.3.0.tgz#76a1050d87daa2717222aa2b3ad1c72e9bc48ce4"
+  integrity sha512-82vvNHmi1r5MzLEybq3ImJ7vAkaVxHZyw6/H+3ZlhXYasOwOIlYy7le71VsW8O4EtLLjuf/A/Wme9vsxH7Wp0w==
+  dependencies:
+    "@lumino/algorithm" "^2.0.1"
+    "@lumino/commands" "^2.1.3"
+    "@lumino/coreutils" "^2.1.2"
+    "@lumino/disposable" "^2.1.2"
+    "@lumino/domutils" "^2.0.1"
+    "@lumino/dragdrop" "^2.1.3"
+    "@lumino/keyboard" "^2.0.1"
+    "@lumino/messaging" "^2.0.1"
+    "@lumino/properties" "^2.0.1"
+    "@lumino/signaling" "^2.1.2"
+    "@lumino/virtualdom" "^2.0.1"
+
 "@nodelib/fs.scandir@2.1.5":
   version "2.1.5"
   resolved "https://registry.yarnpkg.com/@nodelib/fs.scandir/-/fs.scandir-2.1.5.tgz#7619c2eb21b25483f6d167548b4cfd5a7488c3d5"