Merge branch 'master' into KristinAoki/add-start-with-theme-command

Author: KristinAoki

package-lock.json

@@ -47,8 +47,7 @@ const NextButton = ({
   if (isAtTop) {
     return (
       <IconButton
-        variant="light"
-        className={buttonStyle}
+        className={`${buttonStyle} icon-hover`}
         onClick={onClick}
         src={nextArrow}
         disabled={disabled}

src/courseware/course/sequence/sequence-navigation/generic/NextButton.jsx

@@ -40,8 +40,7 @@ const PreviousButton = ({
   if (isAtTop) {
     return (
       <IconButton
-        variant="light"
-        className={buttonStyle}
+        className={`${buttonStyle} icon-hover`}
         onClick={onClickHandler}
         src={prevArrow}
         disabled={disabled}