diff --git a/quantecon_book_theme/layout.html b/quantecon_book_theme/layout.html
index c87a20e..9753876 100644
--- a/quantecon_book_theme/layout.html
+++ b/quantecon_book_theme/layout.html
@@ -90,7 +90,7 @@
 
                 <div class="qe-page__toc">
 
-                    {% if theme_sticky_toc is defined and theme_sticky_toc is sameas true %}
+                    {% if theme_sticky_contents is defined and theme_sticky_contents is sameas true %}
                     <div class="inner sticky">
                     {%- else %}
                     <div class="inner">
diff --git a/quantecon_book_theme/static/quantecon-book-theme.27f831372ca8a27cbff86bbb33459986.css b/quantecon_book_theme/static/quantecon-book-theme.27f831372ca8a27cbff86bbb33459986.css
deleted file mode 100644
index f9aa111..0000000
--- a/quantecon_book_theme/static/quantecon-book-theme.27f831372ca8a27cbff86bbb33459986.css
+++ /dev/null
@@ -1 +0,0 @@
-@import url("https://fonts.googleapis.com/css2?family=PT+Serif:ital,wght@0,700;1,400&family=Source+Sans+Pro:ital,wght@0,400;0,700;1,400;1,700&display=swap");/*! normalize.css v8.0.1 | MIT License | github.com/necolas/normalize.css */html{line-height:1.15;-webkit-text-size-adjust:100%}body{margin:0}main{display:block}h1{font-size:2em;margin:0.67em 0}hr{box-sizing:content-box;height:0;overflow:visible}pre{font-family:monospace, monospace;font-size:1em}a{background-color:transparent}abbr[title]{border-bottom:none;text-decoration:underline;text-decoration:underline dotted}b,strong{font-weight:bolder}code,kbd,samp{font-family:monospace, monospace;font-size:1em}small{font-size:80%}sub,sup{font-size:75%;line-height:0;position:relative;vertical-align:baseline}sub{bottom:-0.25em}sup{top:-0.5em}img{border-style:none}button,input,optgroup,select,textarea{font-family:inherit;font-size:100%;line-height:1.15;margin:0}button,input{overflow:visible}button,select{text-transform:none}button,[type="button"],[type="reset"],[type="submit"]{-webkit-appearance:button}button::-moz-focus-inner,[type="button"]::-moz-focus-inner,[type="reset"]::-moz-focus-inner,[type="submit"]::-moz-focus-inner{border-style:none;padding:0}button:-moz-focusring,[type="button"]:-moz-focusring,[type="reset"]:-moz-focusring,[type="submit"]:-moz-focusring{outline:1px dotted ButtonText}fieldset{padding:0.35em 0.75em 0.625em}legend{box-sizing:border-box;color:inherit;display:table;max-width:100%;padding:0;white-space:normal}progress{vertical-align:baseline}textarea{overflow:auto}[type="checkbox"],[type="radio"]{box-sizing:border-box;padding:0}[type="number"]::-webkit-inner-spin-button,[type="number"]::-webkit-outer-spin-button{height:auto}[type="search"]{-webkit-appearance:textfield;outline-offset:-2px}[type="search"]::-webkit-search-decoration{-webkit-appearance:none}::-webkit-file-upload-button{-webkit-appearance:button;font:inherit}details{display:block}summary{display:list-item}template{display:none}[hidden]{display:none}/*! HTML5 Boilerplate v8.0.0 | MIT License | https://html5boilerplate.com/ */html{color:#222;font-size:1em;line-height:1.4}::-moz-selection{background:#b3d4fc;text-shadow:none}::selection{background:#b3d4fc;text-shadow:none}hr{display:block;height:1px;border:0;border-top:1px solid #ccc;margin:1em 0;padding:0}audio,canvas,iframe,img,svg,video{vertical-align:middle}fieldset{border:0;margin:0;padding:0}textarea{resize:vertical}.hidden,[hidden]{display:none !important}.sr-only{border:0;clip:rect(0, 0, 0, 0);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;white-space:nowrap;width:1px}.sr-only.focusable:active,.sr-only.focusable:focus{clip:auto;height:auto;margin:0;overflow:visible;position:static;white-space:inherit;width:auto}.invisible{visibility:hidden}.clearfix::before,.clearfix::after{content:" ";display:table}.clearfix::after{clear:both}@media print{*,*::before,*::after{background:#fff !important;color:#000 !important;box-shadow:none !important;text-shadow:none !important}a,a:visited{text-decoration:underline}a[href]::after{content:" (" attr(href) ")"}abbr[title]::after{content:" (" attr(title) ")"}a[href^="#"]::after,a[href^="javascript:"]::after{content:""}pre{white-space:pre-wrap !important}pre,blockquote{border:1px solid #999;page-break-inside:avoid}thead{display:table-header-group}tr,img{page-break-inside:avoid}p,h2,h3{orphans:3;widows:3}h2,h3{page-break-after:avoid}}body div.cell div.cell_input{border-left-color:#0072bc}#qe-notebook-header{display:none}.home-intro{display:flex;align-content:center}.home-blurb{font-size:1.1rem;line-height:1.5}.home-intro .sponsor{list-style:none;padding:0;flex-shrink:0;margin:0 60px 0 4rem;text-align:center}.home-intro .sponsor li{display:block;margin:1rem 0;padding:0}.web-version{display:inline-block;padding:2rem 0rem}.web-version a{display:block;color:#23262c;border:1px solid #23262c;border-radius:5px;padding:1rem 40px 1rem 120px;position:relative}.web-version 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a p{margin:10px 0 0 0;color:#444}.highlight{margin:0;padding:0.5rem 10px;border:1px solid #e1e1e1;background:#f7f7f7;border-radius:2px}.highlight{position:relative}.highlight:before{position:absolute;top:0.25rem;left:-40px;font-weight:bold;width:25px;text-align:left;color:#303f9f;font-family:monospace, serif;font-weight:400}.highlight-none .highlight{background:#ffffff;border:0;padding:0;margin:0rem 0 1.5rem 0}.highlight pre{overflow-x:auto;white-space:pre;word-wrap:normal;margin:0.25rem 0}.highlight .hll{background-color:#ffc}.highlight .c{color:#60a0b0;font-style:italic}.highlight .err{border:1px solid red}.highlight .k{color:#007020;font-weight:700}.highlight .o{color:#666}.highlight .cm{color:#60a0b0;font-style:italic}.highlight .cp{color:#007020}.highlight .c1{color:#60a0b0;font-style:italic}.highlight .cs{color:#60a0b0;background-color:#fff0f0}.highlight .gd{color:#a00000}.highlight .ge{font-style:italic}.highlight .gr{color:red}.highlight .gh{color:navy;font-weight:700}.highlight .gi{color:#00a000}.highlight .go{color:#888}.highlight .gp{color:#c65d09;font-weight:700}.highlight .gs{font-weight:700}.highlight .gu{color:purple;font-weight:700}.highlight .gt{color:#04d}.highlight .kc{color:#007020;font-weight:700}.highlight .kd{color:#007020;font-weight:700}.highlight .kn{color:#007020;font-weight:700}.highlight .kp{color:#007020}.highlight .kr{color:#007020;font-weight:700}.highlight .kt{color:#902000}.highlight .m{color:#40a070}.highlight .s{color:#4070a0}.highlight .na{color:#4070a0}.highlight .nb{color:#007020}.highlight .nc{color:#0e84b5;font-weight:700}.highlight .no{color:#60add5}.highlight .nd{color:#555;font-weight:700}.highlight .ni{color:#d55537;font-weight:700}.highlight .ne{color:#007020}.highlight .nf{color:#06287e}.highlight .nl{color:#002070;font-weight:700}.highlight .nn{color:#0e84b5;font-weight:700}.highlight .nt{color:#062873;font-weight:700}.highlight .nv{color:#bb60d5}.highlight 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.il{color:#40a070}.ansi-bold,.ansibold{font-weight:700}.ansi-black-fg{color:#3e424d}.ansi-black-bg{background-color:#3e424d}.ansi-black-intense-fg{color:#282c36}.ansi-black-intense-bg{background-color:#282c36}.ansi-red-fg{color:#e75c58}.ansi-red-bg{background-color:#e75c58}.ansi-red-intense-fg{color:#b22b31}.ansi-red-intense-bg{background-color:#b22b31}.ansi-green-fg{color:#00a250}.ansi-green-bg{background-color:#00a250}.ansi-green-intense-fg{color:#007427}.ansi-green-intense-bg{background-color:#007427}.ansi-yellow-fg{color:#ddb62b}.ansi-yellow-bg{background-color:#ddb62b}.ansi-yellow-intense-fg{color:#b27d12}.ansi-yellow-intense-bg{background-color:#b27d12}.ansi-blue-fg{color:#208ffb}.ansi-blue-bg{background-color:#208ffb}.ansi-blue-intense-fg{color:#0065ca}.ansi-blue-intense-bg{background-color:#0065ca}.ansi-magenta-fg{color:#d160c4}.ansi-magenta-bg{background-color:#d160c4}.ansi-magenta-intense-fg{color:#a03196}.ansi-magenta-intense-bg{background-color:#a03196}.ansi-cyan-fg{color:#60c6c8}.ansi-cyan-bg{background-color:#60c6c8}.ansi-cyan-intense-fg{color:#258f8f}.ansi-cyan-intense-bg{background-color:#258f8f}.ansi-white-fg{color:#c5c1b4}.ansi-white-bg{background-color:#c5c1b4}.ansi-white-intense-fg{color:#a1a6b2}.ansi-white-intense-bg{background-color:#a1a6b2}.ansi-default-inverse-bg,.ansibgblack{background-color:#000}.ansi-default-inverse-fg{color:#fff}.ansi-underline{text-decoration:underline}.ansi-inverse{outline:dotted 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0}h2{font-weight:900;font-size:3rem}h3{font-weight:900;font-size:2.5rem}h4{font-weight:900;font-size:2rem}a{transition:all 0.2s ease-in-out;text-decoration:underline}h1,h2,h3,h4,h5{font-weight:normal;font-family:'PT Serif', serif;color:#444}h1{font-size:2em;color:#333}h2{font-size:1.7rem}h3{font-size:1.4rem}h4{font-size:1.2rem;font-family:'Source Sans Pro', sans-serif;color:#000}strong,b{font-weight:700}li{margin:0.5rem 0}a{color:#0072bc;text-decoration:none;transition:all 0.15s linear;overflow-wrap:break-word}a:hover{color:#004979;text-decoration:underline}a:visited{color:#004979}pre{font-size:0.9rem;white-space:pre-wrap;word-wrap:break-word}cite,code,tt{font-family:'Source Code Pro', monospace;letter-spacing:0.01rem;background-color:#efefef;font-style:normal;border:1px dotted #cccccc;border-radius:2px;padding:0 2px;font-size:0.9rem;overflow-wrap:break-word}.qe-wrapper{margin:0 0 0 0;display:flex;flex-direction:column-reverse}.qe-main{position:relative;display:flex;flex-direction:row-reverse;justify-content:center;padding-left:2rem;padding-right:2rem;padding-top:4rem}.qe-toolbar{position:sticky;top:0;width:100%;padding:0 1rem;z-index:2;background-color:#efefef;border-bottom:1px solid #ccc}.qe-toolbar__inner{margin:0 auto 0 auto;height:50px;line-height:1;display:flex;justify-content:space-between;align-items:center}.qe-toolbar__inner>ul{list-style:none;padding:0;margin:0;display:flex;align-items:center}.qe-toolbar__inner>ul>li{margin:0 10px;padding:0;cursor:pointer;transition:all 0.2s ease-in-out;opacity:0.8}.qe-toolbar__inner>ul>li:hover,.qe-toolbar__inner>ul>li.btn-active{opacity:1;transform:scale(1.1)}.qe-toolbar__inner>ul>li a{color:#444}.qe-toolbar__inner>ul>li path{fill:inherit;stroke:inherit}.qe-toolbar__inner>ul>li.btn__plus{opacity:0.5}.font-plus .qe-toolbar__inner>ul>li.btn__plus{opacity:1;transform:scale(1.1)}.qe-toolbar__inner>ul>li.btn__minus{opacity:0.5}.font-minus .qe-toolbar__inner>ul>li.btn__minus{opacity:1;transform:scale(1.1)}.qe-toolbar__inner>ul>li.btn__contrast{opacity:0.5;margin-right:2rem}.qe-toolbar__inner>ul>li.btn__fullscreen{opacity:0.5}.qe-toolbar__inner>ul>li.btn__search{display:flex;align-items:center}.qe-toolbar__inner>ul>li.btn__search input{height:auto;display:inline-block;width:175px;border:1px solid #ccc;border-radius:2px;background-color:#f8f8f8;margin:0 -28px 0 0;line-height:1;font-size:0.9rem;padding:0.3rem 0.5rem;transition:all 0.2s linear;outline:0;display:none}.qe-toolbar__inner>ul>li.btn__search input:focus{border-color:#444}.qe-toolbar__inner>ul>li.btn__search svg{background-color:transparent;z-index:999}.qe-toolbar__inner>ul>li.btn__search:hover{transform:none}.qe-toolbar__inner>ul>li.btn__search:hover input{border-color:#444}.qe-toolbar__inner>ul>li.btn__qelogo a{display:block;overflow:hidden;height:30px;width:105px;background:url(https://assets.quantecon.org/img/menubar/qemb-logo.png) no-repeat left top;background-size:105px 30px}.qe-toolbar__inner>ul>li svg{width:20px;height:20px}@media (max-width: 576px){.qe-toolbar__inner>ul>li.btn__plus,.qe-toolbar__inner>ul>li.btn__minus,.qe-toolbar__inner>ul>li.btn__fullscreen,.qe-toolbar__inner>ul>li.btn__search{display:none}}.qe-page{max-width:800px;position:relative;flex-grow:1}@media (max-width: 768px){.qe-page{max-width:100%}}.qe-page__toc{position:absolute;right:calc(-200px - 3rem);top:0;margin:0;height:100%;width:200px}@media (max-width: 1350px){.qe-page__toc{display:none}}.qe-page__toc .inner{height:100%}.qe-page__toc-header{font-weight:700;margin:0 0 1rem 0}.qe-page__toc-nav{font-size:0.9rem}.qe-page__toc-nav ul{list-style:none;margin:0;padding:0}.qe-page__toc-nav ul ul{padding-left:1rem}.qe-page__toc-nav ul li{margin:0.25rem 0;padding:0}.qe-page__toc-nav ul li 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diff --git a/quantecon_book_theme/static/quantecon-book-theme.866c05c0faabf6d4b54fbcf535feb16d.css b/quantecon_book_theme/static/quantecon-book-theme.866c05c0faabf6d4b54fbcf535feb16d.css
new file mode 100644
index 0000000..01ae447
--- /dev/null
+++ b/quantecon_book_theme/static/quantecon-book-theme.866c05c0faabf6d4b54fbcf535feb16d.css
@@ -0,0 +1 @@
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diff --git a/quantecon_book_theme/static/quantecon-book-theme.8e803950472302ed98c42444678c3bbd.css b/quantecon_book_theme/static/quantecon-book-theme.8e803950472302ed98c42444678c3bbd.css
deleted file mode 100644
index a963d50..0000000
--- a/quantecon_book_theme/static/quantecon-book-theme.8e803950472302ed98c42444678c3bbd.css
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/quantecon_book_theme/theme.conf b/quantecon_book_theme/theme.conf
index e69d2dc..515ea3e 100644
--- a/quantecon_book_theme/theme.conf
+++ b/quantecon_book_theme/theme.conf
@@ -1,7 +1,7 @@
 # Note: this should only be changed in src/jinja/theme.conf.j2
 [theme]
 inherit = pydata_sphinx_theme
-stylesheet = quantecon-book-theme.27f831372ca8a27cbff86bbb33459986.css
+stylesheet = quantecon-book-theme.866c05c0faabf6d4b54fbcf535feb16d.css
 
 [options]
 single_page = False
@@ -28,5 +28,5 @@ keywords =
 twitter =
 twitter_logo_url =
 og_logo_url =
-sticky_toc = False
+sticky_contents = False
 persistent_sidebar = False
diff --git a/src/jinja/theme.conf b/src/jinja/theme.conf
index 571170e..58dd8c3 100644
--- a/src/jinja/theme.conf
+++ b/src/jinja/theme.conf
@@ -27,5 +27,5 @@ keywords =
 twitter =
 twitter_logo_url =
 og_logo_url =
-sticky_toc = False
+sticky_contents = False
 persistent_sidebar = False
diff --git a/src/jinja/theme.conf.j2 b/src/jinja/theme.conf.j2
index a7c3128..90393f4 100644
--- a/src/jinja/theme.conf.j2
+++ b/src/jinja/theme.conf.j2
@@ -28,5 +28,5 @@ keywords =
 twitter =
 twitter_logo_url =
 og_logo_url =
-sticky_toc = False
+sticky_contents = False
 persistent_sidebar = False