diff --git a/plugins/linear-genome-view/src/LinearGenomeView/components/__snapshots__/LinearGenomeView.test.js.snap b/plugins/linear-genome-view/src/LinearGenomeView/components/__snapshots__/LinearGenomeView.test.js.snap
index e970361bcb..4ab213ab1a 100644
--- a/plugins/linear-genome-view/src/LinearGenomeView/components/__snapshots__/LinearGenomeView.test.js.snap
+++ b/plugins/linear-genome-view/src/LinearGenomeView/components/__snapshots__/LinearGenomeView.test.js.snap
@@ -81,19 +81,18 @@ exports[`<LinearGenomeView /> renders one track, one region 1`] = `
         class="makeStyles-headerBar"
       >
         <button
-          class="MuiButtonBase-root MuiToggleButton-root makeStyles-toggleButton"
-          color="secondary"
+          class="MuiButtonBase-root MuiButton-root MuiButton-text makeStyles-toggleButton MuiButton-textSecondary"
           tabindex="0"
           title="Open track selector"
           type="button"
           value="track_select"
         >
           <span
-            class="MuiToggleButton-label"
+            class="MuiButton-label"
           >
             <svg
               aria-hidden="true"
-              class="MuiSvgIcon-root"
+              class="MuiSvgIcon-root makeStyles-buttonSpacer"
               focusable="false"
               viewBox="0 0 24 24"
             >
@@ -885,19 +884,18 @@ exports[`<LinearGenomeView /> renders two tracks, two regions 1`] = `
         class="makeStyles-headerBar"
       >
         <button
-          class="MuiButtonBase-root MuiToggleButton-root makeStyles-toggleButton"
-          color="secondary"
+          class="MuiButtonBase-root MuiButton-root MuiButton-text makeStyles-toggleButton MuiButton-textSecondary"
           tabindex="0"
           title="Open track selector"
           type="button"
           value="track_select"
         >
           <span
-            class="MuiToggleButton-label"
+            class="MuiButton-label"
           >
             <svg
               aria-hidden="true"
-              class="MuiSvgIcon-root"
+              class="MuiSvgIcon-root makeStyles-buttonSpacer"
               focusable="false"
               viewBox="0 0 24 24"
             >
diff --git a/products/jbrowse-react-linear-genome-view/src/JBrowseLinearGenomeView/__snapshots__/JBrowseLinearGenomeView.test.tsx.snap b/products/jbrowse-react-linear-genome-view/src/JBrowseLinearGenomeView/__snapshots__/JBrowseLinearGenomeView.test.tsx.snap
index c5af710506..6097220cb0 100644
--- a/products/jbrowse-react-linear-genome-view/src/JBrowseLinearGenomeView/__snapshots__/JBrowseLinearGenomeView.test.tsx.snap
+++ b/products/jbrowse-react-linear-genome-view/src/JBrowseLinearGenomeView/__snapshots__/JBrowseLinearGenomeView.test.tsx.snap
@@ -160,19 +160,18 @@ exports[`<JBrowseLinearGenomeView /> renders successfully 1`] = `
               class="makeStyles-headerBar"
             >
               <button
-                class="MuiButtonBase-root MuiToggleButton-root makeStyles-toggleButton"
-                color="secondary"
+                class="MuiButtonBase-root MuiButton-root MuiButton-text makeStyles-toggleButton MuiButton-textSecondary"
                 tabindex="0"
                 title="Open track selector"
                 type="button"
                 value="track_select"
               >
                 <span
-                  class="MuiToggleButton-label"
+                  class="MuiButton-label"
                 >
                   <svg
                     aria-hidden="true"
-                    class="MuiSvgIcon-root"
+                    class="MuiSvgIcon-root makeStyles-buttonSpacer"
                     focusable="false"
                     viewBox="0 0 24 24"
                   >