diff --git a/package.json b/package.json
index 8d5fab59f..97c33f853 100644
--- a/package.json
+++ b/package.json
@@ -66,9 +66,9 @@
   },
   "dependencies": {
     "@babel/runtime": "^7.4.5",
-    "@ohif/extension-cornerstone": "0.0.36",
+    "@ohif/extension-cornerstone": "file:.yalc/@ohif/extension-cornerstone",
     "@ohif/extension-dicom-microscopy": "0.0.6",
-    "@ohif/extension-vtk": "0.0.5",
+    "@ohif/extension-vtk": "file:.yalc/@ohif/extension-vtk",
     "@ohif/i18n": "0.0.4",
     "classnames": "^2.2.6",
     "cornerstone-core": "^2.2.8",
@@ -83,7 +83,7 @@
     "i18next-browser-languagedetector": "^3.0.1",
     "lodash.isequal": "4.5.0",
     "moment": "^2.24.0",
-    "ohif-core": "0.5.9",
+    "ohif-core": "file:.yalc/ohif-core",
     "ohif-dicom-html-extension": "^0.0.2",
     "ohif-dicom-pdf-extension": "^0.0.6",
     "oidc-client": "1.7.x",
@@ -93,11 +93,12 @@
     "react-resize-detector": "^4.2.0",
     "react-router": "^5.0.1",
     "react-router-dom": "^5.0.1",
-    "react-viewerbase": "0.9.0",
+    "react-viewerbase": "file:.yalc/react-viewerbase",
     "redux": "^4.0.1",
     "redux-logger": "^3.0.6",
     "redux-oidc": "3.1.x",
-    "redux-thunk": "^2.3.0"
+    "redux-thunk": "^2.3.0",
+    "reselect": "^4.0.0"
   },
   "devDependencies": {
     "@babel/core": "^7.4.5",
diff --git a/src/App.js b/src/App.js
index 710bb9a22..b269ca01e 100644
--- a/src/App.js
+++ b/src/App.js
@@ -49,17 +49,6 @@ appCommands.init(commandsManager);
 if (window.config.hotkeys) {
   hotkeysManager.setHotkeys(window.config.hotkeys, true);
 }
-
-// Force active contexts for now. These should be set in Viewer/ActiveViewer
-store.dispatch({
-  type: 'ADD_ACTIVE_CONTEXT',
-  item: 'VIEWER',
-});
-store.dispatch({
-  type: 'ADD_ACTIVE_CONTEXT',
-  item: 'ACTIVE_VIEWPORT::CORNERSTONE',
-});
-
 // ~~~~ END APP SETUP
 
 setupTools(store);
diff --git a/src/connectedComponents/ConnectedToolbarRow.js b/src/connectedComponents/ConnectedToolbarRow.js
index 05a74a798..66233bbc9 100644
--- a/src/connectedComponents/ConnectedToolbarRow.js
+++ b/src/connectedComponents/ConnectedToolbarRow.js
@@ -5,22 +5,11 @@ import {
 
 import ToolbarRow from './ToolbarRow';
 import { connect } from 'react-redux';
-
-const defaultPlugin = 'cornerstone';
+import { getActiveContexts } from './../store/layout/selectors.js';
 
 const mapStateToProps = state => {
-  const { layout, viewportSpecificData, activeViewportIndex } = state.viewports;
-  const pluginInLayout =
-    layout.viewports[activeViewportIndex] &&
-    layout.viewports[activeViewportIndex].plugin;
-  const pluginInViewportData =
-    viewportSpecificData[activeViewportIndex] &&
-    viewportSpecificData[activeViewportIndex].plugin;
-  const pluginInActiveViewport =
-    pluginInLayout || pluginInViewportData || defaultPlugin;
-
   return {
-    pluginId: pluginInActiveViewport,
+    activeContexts: getActiveContexts(state),
     leftSidebarOpen: state.ui.leftSidebarOpen,
     rightSidebarOpen: state.ui.rightSidebarOpen,
   };
diff --git a/src/connectedComponents/ConnectedViewerMain.js b/src/connectedComponents/ConnectedViewerMain.js
index 53a6dc8cf..d0ee196e0 100644
--- a/src/connectedComponents/ConnectedViewerMain.js
+++ b/src/connectedComponents/ConnectedViewerMain.js
@@ -5,7 +5,6 @@ import { connect } from 'react-redux';
 const {
   setViewportSpecificData,
   clearViewportSpecificData,
-  // setActiveViewportSpecificData,
 } = OHIF.redux.actions;
 
 const mapStateToProps = state => {
@@ -27,9 +26,6 @@ const mapDispatchToProps = dispatch => {
     clearViewportSpecificData: () => {
       dispatch(clearViewportSpecificData());
     },
-    // setActiveViewportSpecificData: viewport => {
-    //   dispatch(setActiveViewportSpecificData(viewport));
-    // },
   };
 };
 
diff --git a/src/connectedComponents/ToolbarRow.js b/src/connectedComponents/ToolbarRow.js
index 05b09669b..36c0ba77d 100644
--- a/src/connectedComponents/ToolbarRow.js
+++ b/src/connectedComponents/ToolbarRow.js
@@ -15,7 +15,7 @@ class ToolbarRow extends Component {
     rightSidebarOpen: PropTypes.bool.isRequired,
     setLeftSidebarOpen: PropTypes.func,
     setRightSidebarOpen: PropTypes.func,
-    pluginId: PropTypes.string,
+    activeContexts: PropTypes.arrayOf(PropTypes.string).isRequired,
   };
 
   static defaultProps = {
@@ -26,20 +26,13 @@ class ToolbarRow extends Component {
   constructor(props) {
     super(props);
 
-    const toolbarModules = extensionManager.modules[MODULE_TYPES.TOOLBAR];
-    const toolbarButtonDefinitions = toolbarModules[0].module.definitions;
-
+    const toolbarButtonDefinitions = _getVisibleToolbarButtons.call(this);
     // TODO:
-    // ToolbarSection for Each ToolbarButton
-    // Render buttons
-    // On click, depending on Type, pass props to registered command in commands manager?
     // If it's a tool that can be active... Mark it as active?
     // - Tools that are on/off?
     // - Tools that can be bound to multiple buttons?
 
     // Normal ToolbarButtons...
-    // Maybe filtered by the active context(s)?
-    // Buttons can handle their own clicks. No reason for the container to do it?
     // Just how high do we need to hoist this state?
     // Why ToolbarRow instead of just Toolbar? Do we have any others?
     this.state = {
@@ -48,6 +41,17 @@ class ToolbarRow extends Component {
     };
   }
 
+  componentDidUpdate(prevProps) {
+    const activeContextsChanged =
+      prevProps.activeContexts !== this.props.activeContexts;
+
+    if (activeContextsChanged) {
+      this.setState({
+        toolbarButtons: _getVisibleToolbarButtons.call(this),
+      });
+    }
+  }
+
   onLeftSidebarValueChanged = value => {
     this.props.setLeftSidebarOpen(!!value);
   };
@@ -146,4 +150,26 @@ function _getButtonComponents(toolbarButtons, activeButtons) {
   });
 }
 
+function _getVisibleToolbarButtons() {
+  const toolbarModules = extensionManager.modules[MODULE_TYPES.TOOLBAR];
+  const toolbarButtonDefinitions = [];
+
+  toolbarModules.forEach(extension => {
+    const { definitions, defaultContext } = extension.module;
+    definitions.forEach(definition => {
+      const context = definition.context || defaultContext;
+
+      console.log(context);
+      if (this.props.activeContexts.includes(context)) {
+        console.log('includes: ', definition.commandName);
+        toolbarButtonDefinitions.push(definition);
+      }
+    });
+
+    console.log(extension);
+  });
+
+  return toolbarButtonDefinitions;
+}
+
 export default ToolbarRow;
diff --git a/src/store/layout/actions.js b/src/store/layout/actions.js
index 319628c08..2b08800b1 100644
--- a/src/store/layout/actions.js
+++ b/src/store/layout/actions.js
@@ -1,18 +1,3 @@
-export const addActiveContext = state => ({
-  type: 'ADD_ACTIVE_CONTEXT',
-  state,
-});
-
-export const removeActiveContext = state => ({
-  type: 'REMOVE_ACTIVE_CONTEXT',
-  state,
-});
-
-export const clearActiveContexts = state => ({
-  type: 'CLEAR_ACTIVE_CONTEXTS',
-  state,
-});
-
 export const setLeftSidebarOpen = state => ({
   type: 'SET_LEFT_SIDEBAR_OPEN',
   state,
@@ -24,10 +9,6 @@ export const setRightSidebarOpen = state => ({
 });
 
 const actions = {
-  addActiveContext,
-  removeActiveContext,
-  clearActiveContexts,
-  //
   setLeftSidebarOpen,
   setRightSidebarOpen,
 };
diff --git a/src/store/layout/reducers.js b/src/store/layout/reducers.js
index 6659d72a7..b292074ef 100644
--- a/src/store/layout/reducers.js
+++ b/src/store/layout/reducers.js
@@ -3,27 +3,10 @@ const defaultState = {
   rightSidebarOpen: false,
   labelling: {},
   contextMenu: {},
-  activeContexts: [],
 };
 
 const ui = (state = defaultState, action) => {
   switch (action.type) {
-    // ~ ACTIVE CONTEXTS
-    // https://redux.js.org/recipes/structuring-reducers/immutable-update-patterns#inserting-and-removing-items-in-arrays
-    case 'ADD_ACTIVE_CONTEXT': {
-      const shallowCopy = Object.assign({}, state);
-      shallowCopy.activeContexts = [...shallowCopy.activeContexts, action.item];
-      return shallowCopy;
-    }
-    case 'REMOVE_ACTIVE_CONTEXT': {
-      const shallowCopy = Object.assign({}, state);
-      shallowCopy.activeContexts = shallowCopy.activeContexts.filter(
-        item => item !== action.item
-      );
-      return shallowCopy;
-    }
-    case 'CLEAR_ACTIVE_CONTEXTS':
-      return Object.assign({}, state, { activeContexts: [] });
     // ~ SIDEBAR
     case 'SET_LEFT_SIDEBAR_OPEN':
       return Object.assign({}, state, { leftSidebarOpen: action.state });
diff --git a/src/store/layout/selectors.js b/src/store/layout/selectors.js
new file mode 100644
index 000000000..50a8ddb2e
--- /dev/null
+++ b/src/store/layout/selectors.js
@@ -0,0 +1,28 @@
+import { createSelector } from 'reselect';
+
+const getActiveViewportIndex = state => state.viewports.activeViewportIndex;
+const getLayoutViewports = state => state.viewports.layout.viewports;
+const getViewportSpecificData = state => state.viewports.viewportSpecificData;
+
+/**
+ * Think of this as a computed getter for our store. It lets us watch parts of
+ * our redux state, and only update/recalculate when those values change.
+ */
+export const getActiveContexts = createSelector(
+  [getActiveViewportIndex, getLayoutViewports, getViewportSpecificData],
+  (activeViewportIndex, layoutViewports, viewportSpecificData) => {
+    const activeContexts = ['VIEWER'];
+    const activeLayoutViewport = layoutViewports[activeViewportIndex] || {};
+    const activeViewportSpecificData =
+      viewportSpecificData[activeViewportIndex] || {};
+    const activeViewportPluginName =
+      activeLayoutViewport.plugin || activeViewportSpecificData.plugin;
+
+    if (activeViewportPluginName) {
+      const activeViewportExtension = `ACTIVE_VIEWPORT::${activeViewportPluginName.toUpperCase()}`;
+      activeContexts.push(activeViewportExtension);
+    }
+
+    return activeContexts;
+  }
+);
diff --git a/yarn.lock b/yarn.lock
index 1d2c703aa..fd586542c 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1435,10 +1435,8 @@
     universal-user-agent "^2.0.0"
     url-template "^2.0.8"
 
-"@ohif/extension-cornerstone@0.0.36":
-  version "0.0.36"
-  resolved "https://registry.yarnpkg.com/@ohif/extension-cornerstone/-/extension-cornerstone-0.0.36.tgz#a09a01d152bb9f850698b537b02355456425f8d1"
-  integrity sha512-FrR9L74vqjNsW2wOSHeDXQo/twJAf/kM0awCn2/zGXN4tNxEaZRq56gfij86CH0OBGl1Wdzb8Zl6xe0JCtsNrA==
+"@ohif/extension-cornerstone@file:.yalc/@ohif/extension-cornerstone":
+  version "0.0.36-830baf18"
   dependencies:
     "@babel/runtime" "^7.2.0"
     classnames "^2.2.6"
@@ -1454,14 +1452,13 @@
     classnames "^2.2.6"
     dicom-microscopy-viewer "^0.4.3"
 
-"@ohif/extension-vtk@0.0.5":
-  version "0.0.5"
-  resolved "https://registry.yarnpkg.com/@ohif/extension-vtk/-/extension-vtk-0.0.5.tgz#91e096cf57516a4f1808708de8d0406f7b9f547a"
-  integrity sha512-klUbYuM8SH138exWCNcv6CSiN5NVZCg0qMEJfdMFsXdb6knqVoaUiVGPxmgxVKIhX6+/VIrILheEDArtcfGvJw==
+"@ohif/extension-vtk@file:.yalc/@ohif/extension-vtk":
+  version "0.0.6-d0ba76ff"
   dependencies:
     "@babel/runtime" "^7.4.5"
     "@ohif/i18n" "0.0.4"
-    react-vtkjs-viewport "0.0.8"
+    react-vtkjs-viewport "0.0.9"
+    vtk.js "^8.9.1"
 
 "@ohif/i18n@0.0.4", "@ohif/i18n@^0.0.4":
   version "0.0.4"
@@ -2724,6 +2721,11 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
   integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
+base64-js@1.2.1:
+  version "1.2.1"
+  resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.2.1.tgz#a91947da1f4a516ea38e5b4ec0ec3773675e0886"
+  integrity sha512-dwVUVIXsBZXwTuwnXI9RK8sBmgq09NDHzyR9SAph9eqk76gKK2JSQmZARC2zRC81JC2QTtxD0ARU5qTS25gIGw==
+
 base64-js@^1.0.2:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/base64-js/-/base64-js-1.3.0.tgz#cab1e6118f051095e58b5281aea8c1cd22bfc0e3"
@@ -2804,6 +2806,11 @@ bluebird@^3.5.0, bluebird@^3.5.1, bluebird@^3.5.3:
   resolved "https://registry.yarnpkg.com/bluebird/-/bluebird-3.5.4.tgz#d6cc661595de30d5b3af5fcedd3c0b3ef6ec5714"
   integrity sha512-FG+nFEZChJrbQ9tIccIfZJBz3J7mLrAhxakAbnrJWn8d7aKOC+LWifa0G+p4ZqKp4y13T7juYvdhq9NzKdsrjw==
 
+blueimp-md5@2.10.0:
+  version "2.10.0"
+  resolved "https://registry.yarnpkg.com/blueimp-md5/-/blueimp-md5-2.10.0.tgz#02f0843921f90dca14f5b8920a38593201d6964d"
+  integrity sha512-EkNUOi7tpV68TqjpiUz9D9NcT8um2+qtgntmMbi5UKssVX2m/2PLqotcric0RE63pB3HPN/fjf3cKHN2ufGSUQ==
+
 bn.js@^4.0.0, bn.js@^4.1.0, bn.js@^4.1.1, bn.js@^4.4.0:
   version "4.11.8"
   resolved "https://registry.yarnpkg.com/bn.js/-/bn.js-4.11.8.tgz#2cde09eb5ee341f484746bb0309b3253b1b1442f"
@@ -3245,6 +3252,15 @@ capture-stack-trace@^1.0.0:
   resolved "https://registry.yarnpkg.com/capture-stack-trace/-/capture-stack-trace-1.0.1.tgz#a6c0bbe1f38f3aa0b92238ecb6ff42c344d4135d"
   integrity sha512-mYQLZnx5Qt1JgB1WEiMCf2647plpGeQ2NMR/5L0HNZzGQo4fuSPnK+wjfPnKZV0aiJDgzmWqqkV/g7JD+DW0qw==
 
+cardboard-vr-display@^1.0.15:
+  version "1.0.16"
+  resolved "https://registry.yarnpkg.com/cardboard-vr-display/-/cardboard-vr-display-1.0.16.tgz#f91e2798e8fb70a348599638c6742c72dfeadabc"
+  integrity sha512-GFBWPMH/ixy4Ji014BAO1ryddGHphtJlA8gUR6UdKsOpPjUQukCKpgsx2XIJ5oBlqXnDQOcLVRqBWyuvTI32jQ==
+  dependencies:
+    gl-preserve-state "^1.0.0"
+    nosleep.js "^0.7.0"
+    webvr-polyfill-dpdb "^1.0.11"
+
 cardinal@^2.1.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/cardinal/-/cardinal-2.1.1.tgz#7cc1055d822d212954d07b085dea251cc7bc5505"
@@ -3638,6 +3654,11 @@ comma-separated-tokens@^1.0.0:
   resolved "https://registry.yarnpkg.com/comma-separated-tokens/-/comma-separated-tokens-1.0.6.tgz#3cd3d8adc725ab473843db338bcdfd4a7bb087bf"
   integrity sha512-f20oA7jsrrmERTS70r3tmRSxR8IJV2MTN7qe6hzgX+3ARfXrdMJFvGWvWQK0xpcBurg9j9eO2MiqzZ8Y+/UPCA==
 
+commander@2.11.0:
+  version "2.11.0"
+  resolved "https://registry.yarnpkg.com/commander/-/commander-2.11.0.tgz#157152fd1e7a6c8d98a5b715cf376df928004563"
+  integrity sha512-b0553uYA5YAEGgyYIGYROzKQ7X5RAqedkfjiZxwi0kL1g3bOaBNNZfYkzt/CL0umgD5wc9Jec2FbB98CjkMRvQ==
+
 commander@2.17.x:
   version "2.17.1"
   resolved "https://registry.yarnpkg.com/commander/-/commander-2.17.1.tgz#bd77ab7de6de94205ceacc72f1716d29f20a77bf"
@@ -3934,6 +3955,11 @@ core-js@^2.4.0, core-js@^2.6.5:
   resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.6.5.tgz#44bc8d249e7fb2ff5d00e0341a7ffb94fbf67895"
   integrity sha512-klh/kDpwX8hryYL14M9w/xei6vrv6sE8gTHDG7/T/+SEovB/G4ejwcfE/CBzO6Edsu+OETZMZ3wcX/EjUkrl5A==
 
+core-js@~2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/core-js/-/core-js-2.3.0.tgz#fab83fbb0b2d8dc85fa636c4b9d34c75420c6d65"
+  integrity sha1-+rg/uwstjchfpjbEudNMdUIMbWU=
+
 core-util-is@1.0.2, core-util-is@~1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/core-util-is/-/core-util-is-1.0.2.tgz#b5fd54220aa2bc5ab57aab7140c940754503c1a7"
@@ -4473,6 +4499,11 @@ dedent@0.7.0, dedent@^0.7.0:
   resolved "https://registry.yarnpkg.com/dedent/-/dedent-0.7.0.tgz#2495ddbaf6eb874abb0e1be9df22d2e5a544326c"
   integrity sha1-JJXduvbrh0q7Dhvp3yLS5aVEMmw=
 
+deep-diff@^0.3.5:
+  version "0.3.8"
+  resolved "https://registry.yarnpkg.com/deep-diff/-/deep-diff-0.3.8.tgz#c01de63efb0eec9798801d40c7e0dae25b582c84"
+  integrity sha1-wB3mPvsO7JeYgB1Ax+Da4ltYLIQ=
+
 deep-equal@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/deep-equal/-/deep-equal-1.0.1.tgz#f5d260292b660e084eff4cdbc9f08ad3247448b5"
@@ -5020,6 +5051,11 @@ es6-promise@^4.0.3:
   resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-4.2.6.tgz#b685edd8258886365ea62b57d30de28fadcd974f"
   integrity sha512-aRVgGdnmW2OiySVPUC9e6m+plolMAJKjZnQlCwNSuK5yQ0JN61DZSO1X1Ufd1foqWRAlig0rhduTCHe7sVtK5Q==
 
+es6-promise@~3.0.2:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/es6-promise/-/es6-promise-3.0.2.tgz#010d5858423a5f118979665f46486a95c6ee2bb6"
+  integrity sha1-AQ1YWEI6XxGJeWZfRkhqlcbuK7Y=
+
 es6-promisify@^5.0.0:
   version "5.0.0"
   resolved "https://registry.yarnpkg.com/es6-promisify/-/es6-promisify-5.0.0.tgz#5109d62f3e56ea967c4b63505aef08291c8a5203"
@@ -6132,6 +6168,16 @@ git-log-parser@^1.2.0:
     through2 "~2.0.0"
     traverse "~0.6.6"
 
+gl-matrix@3.0.0:
+  version "3.0.0"
+  resolved "https://registry.yarnpkg.com/gl-matrix/-/gl-matrix-3.0.0.tgz#888301ac7650e148c3865370e13ec66d08a8381f"
+  integrity sha512-PD4mVH/C/Zs64kOozeFnKY8ybhgwxXXQYGWdB4h68krAHknWJgk9uKOn6z8YElh5//vs++90pb6csrTIDWnexA==
+
+gl-preserve-state@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/gl-preserve-state/-/gl-preserve-state-1.0.0.tgz#4ef710d62873f1470ed015c6546c37dacddd4198"
+  integrity sha512-zQZ25l3haD4hvgJZ6C9+s0ebdkW9y+7U2qxvGu1uWOJh8a4RU+jURIKEQhf8elIlFpMH6CrAY2tH0mYrRjet3Q==
+
 glob-base@^0.3.0:
   version "0.3.0"
   resolved "https://registry.yarnpkg.com/glob-base/-/glob-base-0.3.0.tgz#dbb164f6221b1c0b1ccf82aea328b497df0ea3c4"
@@ -6826,6 +6872,11 @@ ignore@^5.0.6, ignore@^5.1.1:
   resolved "https://registry.yarnpkg.com/ignore/-/ignore-5.1.2.tgz#e28e584d43ad7e92f96995019cc43b9e1ac49558"
   integrity sha512-vdqWBp7MyzdmHkkRWV5nY+PfGRbYbahfuvsBCh277tq+w9zyNi7h5CYJCK0kmzti9kU+O/cB7sE8HvKv6aXAKQ==
 
+immediate@~3.0.5:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
+  integrity sha1-nbHb0Pr43m++D13V5Wu2BigN5ps=
+
 immer@1.10.0:
   version "1.10.0"
   resolved "https://registry.yarnpkg.com/immer/-/immer-1.10.0.tgz#bad67605ba9c810275d91e1c2a47d4582e98286d"
@@ -8243,6 +8294,17 @@ jsx-ast-utils@^2.1.0:
   dependencies:
     array-includes "^3.0.3"
 
+jszip@3.1.4:
+  version "3.1.4"
+  resolved "https://registry.yarnpkg.com/jszip/-/jszip-3.1.4.tgz#fc323fe41bb1730348d20dd022aa4d8b57cbbcf9"
+  integrity sha512-z6w8iYIxZ/fcgul0j/OerkYnkomH8BZigvzbxVmr2h5HkZUrPtk2kjYtLkqR9wwQxEP6ecKNoKLsbhd18jfnGA==
+  dependencies:
+    core-js "~2.3.0"
+    es6-promise "~3.0.2"
+    lie "~3.1.0"
+    pako "~1.0.2"
+    readable-stream "~2.0.6"
+
 killable@^1.0.0:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/killable/-/killable-1.0.1.tgz#4c8ce441187a061c7474fb87ca08e2a638194892"
@@ -8483,6 +8545,13 @@ libnpx@^10.2.0:
     y18n "^4.0.0"
     yargs "^11.0.0"
 
+lie@~3.1.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/lie/-/lie-3.1.1.tgz#9a436b2cc7746ca59de7a41fa469b3efb76bd87e"
+  integrity sha1-mkNrLMd0bKWd56QfpGmz77dr2H4=
+  dependencies:
+    immediate "~3.0.5"
+
 lint-staged@^8.2.1:
   version "8.2.1"
   resolved "https://registry.yarnpkg.com/lint-staged/-/lint-staged-8.2.1.tgz#752fcf222d9d28f323a3b80f1e668f3654ff221f"
@@ -9758,6 +9827,11 @@ normalize-url@^4.0.0:
   resolved "https://registry.yarnpkg.com/normalize-url/-/normalize-url-4.3.0.tgz#9c49e10fc1876aeb76dba88bf1b2b5d9fa57b2ee"
   integrity sha512-0NLtR71o4k6GLP+mr6Ty34c5GA6CMoEsncKJxvQd8NzPxaHRJNnb5gZE8R1XF4CPIS7QPHLJ74IFszwtNVAHVQ==
 
+nosleep.js@^0.7.0:
+  version "0.7.0"
+  resolved "https://registry.yarnpkg.com/nosleep.js/-/nosleep.js-0.7.0.tgz#cfd919c25523ca0d0f4a69fb3305c083adaee289"
+  integrity sha1-z9kZwlUjyg0PSmn7MwXAg62u4ok=
+
 npm-audit-report@^1.3.1:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/npm-audit-report/-/npm-audit-report-1.3.2.tgz#303bc78cd9e4c226415076a4f7e528c89fc77018"
@@ -10193,10 +10267,8 @@ octokit-pagination-methods@^1.1.0:
   resolved "https://registry.yarnpkg.com/octokit-pagination-methods/-/octokit-pagination-methods-1.1.0.tgz#cf472edc9d551055f9ef73f6e42b4dbb4c80bea4"
   integrity sha512-fZ4qZdQ2nxJvtcasX7Ghl+WlWS/d9IgnBIwFZXVNNZUmzpno91SX5bc5vuxiuKoCtK78XxGGNuSCrDC7xYB3OQ==
 
-ohif-core@0.5.9:
-  version "0.5.9"
-  resolved "https://registry.yarnpkg.com/ohif-core/-/ohif-core-0.5.9.tgz#337835c82571bdc4935210273a6018c3af872adf"
-  integrity sha512-TvA/THiTpBnerRbv4FJlfwSMSyb4Tkn40ud14FP6JxLUQgCtLsTsaFhXIFBwZvBR/qVJwIlDluMxj/vqobCwkQ==
+"ohif-core@file:.yalc/ohif-core":
+  version "0.4.0-6d8c6d8a"
   dependencies:
     "@babel/runtime" "^7.2.0"
     ajv "^6.10.0"
@@ -10508,7 +10580,12 @@ pacote@^8.1.6:
     unique-filename "^1.1.0"
     which "^1.3.0"
 
-pako@~1.0.5:
+pako@1.0.6:
+  version "1.0.6"
+  resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.6.tgz#0101211baa70c4bca4a0f63f2206e97b7dfaf258"
+  integrity sha512-lQe48YPsMJAig+yngZ87Lus+NF+3mtu7DVOBu6b/gHO1YpKwIj5AWjZ/TOS7i46HD/UixzWb1zeWDZfGZ3iYcg==
+
+pako@~1.0.2, pako@~1.0.5:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/pako/-/pako-1.0.10.tgz#4328badb5086a426aa90f541977d4955da5c9732"
   integrity sha512-0DTvPVU3ed8+HNXOu5Bs+o//Mbdj9VNQMUOe9oKCwh8l0GNwpTDMKCWbRjgtD291AWnkAgkqA/LOnQS8AmS1tw==
@@ -11681,6 +11758,11 @@ process-es6@^0.11.2:
   resolved "https://registry.yarnpkg.com/process-es6/-/process-es6-0.11.6.tgz#c6bb389f9a951f82bd4eb169600105bd2ff9c778"
   integrity sha1-xrs4n5qVH4K9TrFpYAEFvS/5x3g=
 
+process-nextick-args@~1.0.6:
+  version "1.0.7"
+  resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-1.0.7.tgz#150e20b756590ad3f91093f25a4f2ad8bff30ba3"
+  integrity sha1-FQ4gt1ZZCtP5EJPyWk8q2L/zC6M=
+
 process-nextick-args@~2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/process-nextick-args/-/process-nextick-args-2.0.0.tgz#a37d732f4271b4ab1ad070d35508e8290788ffaa"
@@ -12325,10 +12407,8 @@ react-transition-group@^2.0.0, react-transition-group@^2.2.0:
     prop-types "^15.6.2"
     react-lifecycles-compat "^3.0.4"
 
-react-viewerbase@0.9.0:
-  version "0.9.0"
-  resolved "https://registry.yarnpkg.com/react-viewerbase/-/react-viewerbase-0.9.0.tgz#947ab61bf32e1d58836a637403d128247e175d2e"
-  integrity sha512-VeOGzno5fg9A0Ttx+O3CQ8KXPr1XbdEOVbA+JiLwcuycX3CmDsqLzODsjeXb8npfXDbQA+n/ZPCyxsB7JDEBlA==
+"react-viewerbase@file:.yalc/react-viewerbase":
+  version "0.2.17-075df77f"
   dependencies:
     "@babel/runtime" "7.2.0"
     "@ohif/i18n" "^0.0.4"
@@ -12345,10 +12425,10 @@ react-viewerbase@0.9.0:
     react-i18next "^10.11.0"
     react-with-direction "1.3.0"
 
-react-vtkjs-viewport@0.0.8:
-  version "0.0.8"
-  resolved "https://registry.yarnpkg.com/react-vtkjs-viewport/-/react-vtkjs-viewport-0.0.8.tgz#194bd96c3f66f7f5fe4c757e0621fb5b0b43907e"
-  integrity sha512-L7RMr0z+C7CixW6+Wal3AAJiO1je5GlVLEKOpzMtayB5gECcrOD5AC+1/s5C/1okNVJG9BW4W9UZBoHRM6dRpw==
+react-vtkjs-viewport@0.0.9:
+  version "0.0.9"
+  resolved "https://registry.yarnpkg.com/react-vtkjs-viewport/-/react-vtkjs-viewport-0.0.9.tgz#da79aa66f52dcd731bcc5abd2587cbb120a25331"
+  integrity sha512-VwRCY2DPxWMhix4v3PAtdENp3U1p+Z9nKf1Ch5+KWRKF6fWeA+B2glYKMYNpPnP4bULzVz9iwV+Zeojt3gEibA==
   dependencies:
     moment "^2.24.0"
 
@@ -12548,6 +12628,18 @@ readable-stream@~1.0.26, readable-stream@~1.0.26-4:
     isarray "0.0.1"
     string_decoder "~0.10.x"
 
+readable-stream@~2.0.6:
+  version "2.0.6"
+  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-2.0.6.tgz#8f90341e68a53ccc928788dacfcd11b36eb9b78e"
+  integrity sha1-j5A0HmilPMySh4jaz80Rs265t44=
+  dependencies:
+    core-util-is "~1.0.0"
+    inherits "~2.0.1"
+    isarray "~1.0.0"
+    process-nextick-args "~1.0.6"
+    string_decoder "~0.10.x"
+    util-deprecate "~1.0.1"
+
 readdir-scoped-modules@^1.0.0:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/readdir-scoped-modules/-/readdir-scoped-modules-1.0.2.tgz#9fafa37d286be5d92cbaebdee030dc9b5f406747"
@@ -12615,6 +12707,13 @@ redeyed@~2.1.0:
   dependencies:
     esprima "~4.0.0"
 
+redux-logger@^3.0.6:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/redux-logger/-/redux-logger-3.0.6.tgz#f7555966f3098f3c88604c449cf0baf5778274bf"
+  integrity sha1-91VZZvMJjzyIYExEnPC69XeCdL8=
+  dependencies:
+    deep-diff "^0.3.5"
+
 redux-oidc@3.1.x:
   version "3.1.2"
   resolved "https://registry.yarnpkg.com/redux-oidc/-/redux-oidc-3.1.2.tgz#31a771b0e05a65879626262e1e63ba70a0936ffd"
@@ -12622,6 +12721,11 @@ redux-oidc@3.1.x:
   optionalDependencies:
     immutable ">=3.6.0"
 
+redux-thunk@^2.3.0:
+  version "2.3.0"
+  resolved "https://registry.yarnpkg.com/redux-thunk/-/redux-thunk-2.3.0.tgz#51c2c19a185ed5187aaa9a2d08b666d0d6467622"
+  integrity sha512-km6dclyFnmcvxhAcrQV2AkZmPQjzPDjgVlQtR0EQjxZPyJ0BnMf3in1ryuR8A2qU0HldVRfxYXbFSKlI3N7Slw==
+
 redux@^4.0.1:
   version "4.0.1"
   resolved "https://registry.yarnpkg.com/redux/-/redux-4.0.1.tgz#436cae6cc40fbe4727689d7c8fae44808f1bfef5"
@@ -12933,6 +13037,11 @@ requires-port@^1.0.0:
   resolved "https://registry.yarnpkg.com/requires-port/-/requires-port-1.0.0.tgz#925d2601d39ac485e091cf0da5c6e694dc3dcaff"
   integrity sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8=
 
+reselect@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/reselect/-/reselect-4.0.0.tgz#f2529830e5d3d0e021408b246a206ef4ea4437f7"
+  integrity sha512-qUgANli03jjAyGlnbYVAV5vvnOmJnODyABz51RdBN7M4WaVu8mecZWgyQNkG8Yqe3KRGRt0l4K4B3XVEULC4CA==
+
 reserved-words@^0.1.2:
   version "0.1.2"
   resolved "https://registry.yarnpkg.com/reserved-words/-/reserved-words-0.1.2.tgz#00a0940f98cd501aeaaac316411d9adc52b31ab1"
@@ -13276,6 +13385,11 @@ schema-utils@^1.0.0:
     ajv-errors "^1.0.0"
     ajv-keywords "^3.1.0"
 
+seedrandom@2.4.3:
+  version "2.4.3"
+  resolved "https://registry.yarnpkg.com/seedrandom/-/seedrandom-2.4.3.tgz#2438504dad33917314bff18ac4d794f16d6aaecc"
+  integrity sha1-JDhQTa0zkXMUv/GKxNeU8W1qrsw=
+
 select-hose@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/select-hose/-/select-hose-2.0.0.tgz#625d8658f865af43ec962bfc376a37359a4994ca"
@@ -13520,6 +13634,15 @@ shelljs@0.7.6:
     interpret "^1.0.0"
     rechoir "^0.6.2"
 
+shelljs@0.7.8:
+  version "0.7.8"
+  resolved "https://registry.yarnpkg.com/shelljs/-/shelljs-0.7.8.tgz#decbcf874b0d1e5fb72e14b164a9683048e9acb3"
+  integrity sha1-3svPh0sNHl+3LhSxZKloMEjprLM=
+  dependencies:
+    glob "^7.0.0"
+    interpret "^1.0.0"
+    rechoir "^0.6.2"
+
 shellwords@^0.1.1:
   version "0.1.1"
   resolved "https://registry.yarnpkg.com/shellwords/-/shellwords-0.1.1.tgz#d6b9181c1a48d397324c84871efbcfc73fc0654b"
@@ -15105,6 +15228,23 @@ void-elements@^2.0.1:
   resolved "https://registry.yarnpkg.com/void-elements/-/void-elements-2.0.1.tgz#c066afb582bb1cb4128d60ea92392e94d5e9dbec"
   integrity sha1-wGavtYK7HLQSjWDqkjkulNXp2+w=
 
+vtk.js@^8.9.1:
+  version "8.9.1"
+  resolved "https://registry.yarnpkg.com/vtk.js/-/vtk.js-8.9.1.tgz#db49e869fbf61e4d6ca71a8a61f9092bc5fa39f7"
+  integrity sha512-sxQ/kFXQTVp2bzRhnSwOXlODWL0vlBkZ3X+SKW+G3ZmGDmncFGkjS5yXhTJFLBp2LVvYnqQiA8z4AeE6XrhkSg==
+  dependencies:
+    base64-js "1.2.1"
+    blueimp-md5 "2.10.0"
+    commander "2.11.0"
+    gl-matrix "3.0.0"
+    jszip "3.1.4"
+    pako "1.0.6"
+    seedrandom "2.4.3"
+    shelljs "0.7.8"
+    webvr-polyfill "0.10.8"
+    webworker-promise "0.4.2"
+    xmlbuilder "9.0.7"
+
 w3c-hr-time@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/w3c-hr-time/-/w3c-hr-time-1.0.1.tgz#82ac2bff63d950ea9e3189a58a65625fedf19045"
@@ -15282,6 +15422,23 @@ websocket-extensions@>=0.1.1:
   resolved "https://registry.yarnpkg.com/websocket-extensions/-/websocket-extensions-0.1.3.tgz#5d2ff22977003ec687a4b87073dfbbac146ccf29"
   integrity sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==
 
+webvr-polyfill-dpdb@^1.0.11:
+  version "1.0.16"
+  resolved "https://registry.yarnpkg.com/webvr-polyfill-dpdb/-/webvr-polyfill-dpdb-1.0.16.tgz#7f2cf88460c002a5f10ff69b2bf3a5663e0ad9dd"
+  integrity sha512-FCciTtPhwkYYHGL0K67G8k7ZnNVqnEx3u4NVHLJ0+Ya6f2VTZUl/GJpaEo1Id2pBP/2l0RYZ3IGZE4Pe8fRalg==
+
+webvr-polyfill@0.10.8:
+  version "0.10.8"
+  resolved "https://registry.yarnpkg.com/webvr-polyfill/-/webvr-polyfill-0.10.8.tgz#64f8896a4d07375347217284a66b943c93da3dc9"
+  integrity sha512-Oa89Hb0+NRRgQXxnMxnPgT/1UYItPJfpnwmn7RFmPtGpxcWBXpwXZ0zR0RkfoB77ahlJZ+No+5QejLfOA4CJ8Q==
+  dependencies:
+    cardboard-vr-display "^1.0.15"
+
+webworker-promise@0.4.2:
+  version "0.4.2"
+  resolved "https://registry.yarnpkg.com/webworker-promise/-/webworker-promise-0.4.2.tgz#aeb92684a3a5a05e95ddaeccf8482254c6cf5dc0"
+  integrity sha512-/se9zS6MpRhyodk+C7YcBZq5mY1apJvKys6Tb6t2NDDeRMGgRuuyYjox38PssylFyPodjPEab/S0WuA20CFu7g==
+
 whatwg-encoding@^1.0.1, whatwg-encoding@^1.0.3, whatwg-encoding@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/whatwg-encoding/-/whatwg-encoding-1.0.5.tgz#5abacf777c32166a51d085d6b4f3e7d27113ddb0"
@@ -15594,6 +15751,11 @@ xml@^1.0.1:
   resolved "https://registry.yarnpkg.com/xml/-/xml-1.0.1.tgz#78ba72020029c5bc87b8a81a3cfcd74b4a2fc1e5"
   integrity sha1-eLpyAgApxbyHuKgaPPzXS0ovweU=
 
+xmlbuilder@9.0.7:
+  version "9.0.7"
+  resolved "https://registry.yarnpkg.com/xmlbuilder/-/xmlbuilder-9.0.7.tgz#132ee63d2ec5565c557e20f4c22df9aca686b10d"
+  integrity sha1-Ey7mPS7FVlxVfiD0wi35rKaGsQ0=
+
 xmlchars@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/xmlchars/-/xmlchars-1.3.1.tgz#1dda035f833dbb4f86a0c28eaa6ca769214793cf"