diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..4567c3b
Binary files /dev/null and b/.DS_Store differ
diff --git a/WorkPad.pro b/WorkPad.pro
index 69393c6..75622f3 100644
--- a/WorkPad.pro
+++ b/WorkPad.pro
@@ -7,7 +7,7 @@ CONFIG += c++17
 win32:VERSION = 3.0.0.0 # major.minor.patch.build
 else:VERSION = 3.0.0    # major.minor.patch
 
-DEFINES += APP_VERSION=\"\\\"$${VERSION}-rc1\\\"\"
+DEFINES += APP_VERSION=\"\\\"$${VERSION}-rc2\\\"\"
 DEFINES += APP_NAME=\"\\\"WorkPad\\\"\"
 
 # remove possible other optimization flags
@@ -111,4 +111,5 @@ else: unix:!android: target.path = /opt/$${TARGET}/bin
 !isEmpty(target.path): INSTALLS += target
 
 RESOURCES += \
-    icons.qrc
+    icons.qrc \
+    static.qrc
diff --git a/resources/style.css b/resources/style.css
new file mode 100644
index 0000000..ce0861d
--- /dev/null
+++ b/resources/style.css
@@ -0,0 +1,1105 @@
+/* light */
+.markdown-body {
+  color-scheme: light;
+  -ms-text-size-adjust: 100%;
+  -webkit-text-size-adjust: 100%;
+  margin: 0;
+  color: #1f2328;
+  background-color: #ffffff;
+  font-family: -apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans",Helvetica,Arial,sans-serif,"Apple Color Emoji","Segoe UI Emoji";
+  font-size: 16px;
+  line-height: 1.5;
+  word-wrap: break-word;
+}
+
+.markdown-body .octicon {
+  display: inline-block;
+  fill: currentColor;
+  vertical-align: text-bottom;
+}
+
+.markdown-body h1:hover .anchor .octicon-link:before,
+.markdown-body h2:hover .anchor .octicon-link:before,
+.markdown-body h3:hover .anchor .octicon-link:before,
+.markdown-body h4:hover .anchor .octicon-link:before,
+.markdown-body h5:hover .anchor .octicon-link:before,
+.markdown-body h6:hover .anchor .octicon-link:before {
+  width: 16px;
+  height: 16px;
+  content: ' ';
+  display: inline-block;
+  background-color: currentColor;
+  -webkit-mask-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' version='1.1' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg>");
+  mask-image: url("data:image/svg+xml,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' version='1.1' aria-hidden='true'><path fill-rule='evenodd' d='M7.775 3.275a.75.75 0 001.06 1.06l1.25-1.25a2 2 0 112.83 2.83l-2.5 2.5a2 2 0 01-2.83 0 .75.75 0 00-1.06 1.06 3.5 3.5 0 004.95 0l2.5-2.5a3.5 3.5 0 00-4.95-4.95l-1.25 1.25zm-4.69 9.64a2 2 0 010-2.83l2.5-2.5a2 2 0 012.83 0 .75.75 0 001.06-1.06 3.5 3.5 0 00-4.95 0l-2.5 2.5a3.5 3.5 0 004.95 4.95l1.25-1.25a.75.75 0 00-1.06-1.06l-1.25 1.25a2 2 0 01-2.83 0z'></path></svg>");
+}
+
+.markdown-body details,
+.markdown-body figcaption,
+.markdown-body figure {
+  display: block;
+}
+
+.markdown-body summary {
+  display: list-item;
+}
+
+.markdown-body [hidden] {
+  display: none !important;
+}
+
+.markdown-body a {
+  background-color: transparent;
+  color: #0969da;
+  text-decoration: none;
+}
+
+.markdown-body abbr[title] {
+  border-bottom: none;
+  -webkit-text-decoration: underline dotted;
+  text-decoration: underline dotted;
+}
+
+.markdown-body b,
+.markdown-body strong {
+  font-weight: 600;
+}
+
+.markdown-body dfn {
+  font-style: italic;
+}
+
+.markdown-body h1 {
+  margin: .67em 0;
+  font-weight: 600;
+  padding-bottom: .3em;
+  font-size: 2em;
+  border-bottom: 1px solid #d1d9e0b3;
+}
+
+.markdown-body mark {
+  background-color: #fff8c5;
+  color: #1f2328;
+}
+
+.markdown-body small {
+  font-size: 90%;
+}
+
+.markdown-body sub,
+.markdown-body sup {
+  font-size: 75%;
+  line-height: 0;
+  position: relative;
+  vertical-align: baseline;
+}
+
+.markdown-body sub {
+  bottom: -0.25em;
+}
+
+.markdown-body sup {
+  top: -0.5em;
+}
+
+.markdown-body img {
+  border-style: none;
+  max-width: 100%;
+  box-sizing: content-box;
+}
+
+.markdown-body code,
+.markdown-body kbd,
+.markdown-body pre,
+.markdown-body samp {
+  font-family: monospace;
+  font-size: 1em;
+}
+
+.markdown-body figure {
+  margin: 1em 2.5rem;
+}
+
+.markdown-body hr {
+  box-sizing: content-box;
+  overflow: hidden;
+  background: transparent;
+  border-bottom: 1px solid #d1d9e0b3;
+  height: .25em;
+  padding: 0;
+  margin: 1.5rem 0;
+  background-color: #d1d9e0;
+  border: 0;
+}
+
+.markdown-body input {
+  font: inherit;
+  margin: 0;
+  overflow: visible;
+  font-family: inherit;
+  font-size: inherit;
+  line-height: inherit;
+}
+
+.markdown-body [type=button],
+.markdown-body [type=reset],
+.markdown-body [type=submit] {
+  -webkit-appearance: button;
+  appearance: button;
+}
+
+.markdown-body [type=checkbox],
+.markdown-body [type=radio] {
+  box-sizing: border-box;
+  padding: 0;
+}
+
+.markdown-body [type=number]::-webkit-inner-spin-button,
+.markdown-body [type=number]::-webkit-outer-spin-button {
+  height: auto;
+}
+
+.markdown-body [type=search]::-webkit-search-cancel-button,
+.markdown-body [type=search]::-webkit-search-decoration {
+  -webkit-appearance: none;
+  appearance: none;
+}
+
+.markdown-body ::-webkit-input-placeholder {
+  color: inherit;
+  opacity: .54;
+}
+
+.markdown-body ::-webkit-file-upload-button {
+  -webkit-appearance: button;
+  appearance: button;
+  font: inherit;
+}
+
+.markdown-body a:hover {
+  text-decoration: underline;
+}
+
+.markdown-body ::placeholder {
+  color: #59636e;
+  opacity: 1;
+}
+
+.markdown-body hr::before {
+  display: table;
+  content: "";
+}
+
+.markdown-body hr::after {
+  display: table;
+  clear: both;
+  content: "";
+}
+
+.markdown-body table {
+  border-spacing: 0;
+  border-collapse: collapse;
+  display: block;
+  width: max-content;
+  max-width: 100%;
+  overflow: auto;
+  font-variant: tabular-nums;
+}
+
+.markdown-body td,
+.markdown-body th {
+  padding: 0;
+}
+
+.markdown-body details summary {
+  cursor: pointer;
+}
+
+.markdown-body a:focus,
+.markdown-body [role=button]:focus,
+.markdown-body input[type=radio]:focus,
+.markdown-body input[type=checkbox]:focus {
+  outline: 2px solid #0969da;
+  outline-offset: -2px;
+  box-shadow: none;
+}
+
+.markdown-body a:focus:not(:focus-visible),
+.markdown-body [role=button]:focus:not(:focus-visible),
+.markdown-body input[type=radio]:focus:not(:focus-visible),
+.markdown-body input[type=checkbox]:focus:not(:focus-visible) {
+  outline: solid 1px transparent;
+}
+
+.markdown-body a:focus-visible,
+.markdown-body [role=button]:focus-visible,
+.markdown-body input[type=radio]:focus-visible,
+.markdown-body input[type=checkbox]:focus-visible {
+  outline: 2px solid #0969da;
+  outline-offset: -2px;
+  box-shadow: none;
+}
+
+.markdown-body a:not([class]):focus,
+.markdown-body a:not([class]):focus-visible,
+.markdown-body input[type=radio]:focus,
+.markdown-body input[type=radio]:focus-visible,
+.markdown-body input[type=checkbox]:focus,
+.markdown-body input[type=checkbox]:focus-visible {
+  outline-offset: 0;
+}
+
+.markdown-body kbd {
+  display: inline-block;
+  padding: 0.25rem;
+  font: 11px ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
+  line-height: 10px;
+  color: #1f2328;
+  vertical-align: middle;
+  background-color: #f6f8fa;
+  border: solid 1px #d1d9e0b3;
+  border-bottom-color: #d1d9e0b3;
+  border-radius: 6px;
+  box-shadow: inset 0 -1px 0 #d1d9e0b3;
+}
+
+.markdown-body h1,
+.markdown-body h2,
+.markdown-body h3,
+.markdown-body h4,
+.markdown-body h5,
+.markdown-body h6 {
+  margin-top: 1.5rem;
+  margin-bottom: 1rem;
+  font-weight: 600;
+  line-height: 1.25;
+}
+
+.markdown-body h2 {
+  font-weight: 600;
+  padding-bottom: .3em;
+  font-size: 1.5em;
+  border-bottom: 1px solid #d1d9e0b3;
+}
+
+.markdown-body h3 {
+  font-weight: 600;
+  font-size: 1.25em;
+}
+
+.markdown-body h4 {
+  font-weight: 600;
+  font-size: 1em;
+}
+
+.markdown-body h5 {
+  font-weight: 600;
+  font-size: .875em;
+}
+
+.markdown-body h6 {
+  font-weight: 600;
+  font-size: .85em;
+  color: #59636e;
+}
+
+.markdown-body p {
+  margin-top: 0;
+  margin-bottom: 10px;
+}
+
+.markdown-body blockquote {
+  margin: 0;
+  padding: 0 1em;
+  color: #59636e;
+  border-left: .25em solid #d1d9e0;
+}
+
+.markdown-body ul,
+.markdown-body ol {
+  margin-top: 0;
+  margin-bottom: 0;
+  padding-left: 2em;
+}
+
+.markdown-body ol ol,
+.markdown-body ul ol {
+  list-style-type: lower-roman;
+}
+
+.markdown-body ul ul ol,
+.markdown-body ul ol ol,
+.markdown-body ol ul ol,
+.markdown-body ol ol ol {
+  list-style-type: lower-alpha;
+}
+
+.markdown-body dd {
+  margin-left: 0;
+}
+
+.markdown-body tt,
+.markdown-body code,
+.markdown-body samp {
+  font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
+  font-size: 12px;
+}
+
+.markdown-body pre {
+  margin-top: 0;
+  margin-bottom: 0;
+  font-family: ui-monospace, SFMono-Regular, SF Mono, Menlo, Consolas, Liberation Mono, monospace;
+  font-size: 12px;
+  word-wrap: normal;
+}
+
+.markdown-body .octicon {
+  display: inline-block;
+  overflow: visible !important;
+  vertical-align: text-bottom;
+  fill: currentColor;
+}
+
+.markdown-body input::-webkit-outer-spin-button,
+.markdown-body input::-webkit-inner-spin-button {
+  margin: 0;
+  appearance: none;
+}
+
+.markdown-body .mr-2 {
+  margin-right: 0.5rem !important;
+}
+
+.markdown-body::before {
+  display: table;
+  content: "";
+}
+
+.markdown-body::after {
+  display: table;
+  clear: both;
+  content: "";
+}
+
+.markdown-body>*:first-child {
+  margin-top: 0 !important;
+}
+
+.markdown-body>*:last-child {
+  margin-bottom: 0 !important;
+}
+
+.markdown-body a:not([href]) {
+  color: inherit;
+  text-decoration: none;
+}
+
+.markdown-body .absent {
+  color: #d1242f;
+}
+
+.markdown-body .anchor {
+  float: left;
+  padding-right: 0.25rem;
+  margin-left: -20px;
+  line-height: 1;
+}
+
+.markdown-body .anchor:focus {
+  outline: none;
+}
+
+.markdown-body p,
+.markdown-body blockquote,
+.markdown-body ul,
+.markdown-body ol,
+.markdown-body dl,
+.markdown-body table,
+.markdown-body pre,
+.markdown-body details {
+  margin-top: 0;
+  margin-bottom: 1rem;
+}
+
+.markdown-body blockquote>:first-child {
+  margin-top: 0;
+}
+
+.markdown-body blockquote>:last-child {
+  margin-bottom: 0;
+}
+
+.markdown-body h1 .octicon-link,
+.markdown-body h2 .octicon-link,
+.markdown-body h3 .octicon-link,
+.markdown-body h4 .octicon-link,
+.markdown-body h5 .octicon-link,
+.markdown-body h6 .octicon-link {
+  color: #1f2328;
+  vertical-align: middle;
+  visibility: hidden;
+}
+
+.markdown-body h1:hover .anchor,
+.markdown-body h2:hover .anchor,
+.markdown-body h3:hover .anchor,
+.markdown-body h4:hover .anchor,
+.markdown-body h5:hover .anchor,
+.markdown-body h6:hover .anchor {
+  text-decoration: none;
+}
+
+.markdown-body h1:hover .anchor .octicon-link,
+.markdown-body h2:hover .anchor .octicon-link,
+.markdown-body h3:hover .anchor .octicon-link,
+.markdown-body h4:hover .anchor .octicon-link,
+.markdown-body h5:hover .anchor .octicon-link,
+.markdown-body h6:hover .anchor .octicon-link {
+  visibility: visible;
+}
+
+.markdown-body h1 tt,
+.markdown-body h1 code,
+.markdown-body h2 tt,
+.markdown-body h2 code,
+.markdown-body h3 tt,
+.markdown-body h3 code,
+.markdown-body h4 tt,
+.markdown-body h4 code,
+.markdown-body h5 tt,
+.markdown-body h5 code,
+.markdown-body h6 tt,
+.markdown-body h6 code {
+  padding: 0 .2em;
+  font-size: inherit;
+}
+
+.markdown-body summary h1,
+.markdown-body summary h2,
+.markdown-body summary h3,
+.markdown-body summary h4,
+.markdown-body summary h5,
+.markdown-body summary h6 {
+  display: inline-block;
+}
+
+.markdown-body summary h1 .anchor,
+.markdown-body summary h2 .anchor,
+.markdown-body summary h3 .anchor,
+.markdown-body summary h4 .anchor,
+.markdown-body summary h5 .anchor,
+.markdown-body summary h6 .anchor {
+  margin-left: -40px;
+}
+
+.markdown-body summary h1,
+.markdown-body summary h2 {
+  padding-bottom: 0;
+  border-bottom: 0;
+}
+
+.markdown-body ul.no-list,
+.markdown-body ol.no-list {
+  padding: 0;
+  list-style-type: none;
+}
+
+.markdown-body ol[type="a s"] {
+  list-style-type: lower-alpha;
+}
+
+.markdown-body ol[type="A s"] {
+  list-style-type: upper-alpha;
+}
+
+.markdown-body ol[type="i s"] {
+  list-style-type: lower-roman;
+}
+
+.markdown-body ol[type="I s"] {
+  list-style-type: upper-roman;
+}
+
+.markdown-body ol[type="1"] {
+  list-style-type: decimal;
+}
+
+.markdown-body div>ol:not([type]) {
+  list-style-type: decimal;
+}
+
+.markdown-body ul ul,
+.markdown-body ul ol,
+.markdown-body ol ol,
+.markdown-body ol ul {
+  margin-top: 0;
+  margin-bottom: 0;
+}
+
+.markdown-body li>p {
+  margin-top: 1rem;
+}
+
+.markdown-body li+li {
+  margin-top: .25em;
+}
+
+.markdown-body dl {
+  padding: 0;
+}
+
+.markdown-body dl dt {
+  padding: 0;
+  margin-top: 1rem;
+  font-size: 1em;
+  font-style: italic;
+  font-weight: 600;
+}
+
+.markdown-body dl dd {
+  padding: 0 1rem;
+  margin-bottom: 1rem;
+}
+
+.markdown-body table th {
+  font-weight: 600;
+}
+
+.markdown-body table th,
+.markdown-body table td {
+  padding: 6px 13px;
+  border: 1px solid #d1d9e0;
+}
+
+.markdown-body table td>:last-child {
+  margin-bottom: 0;
+}
+
+.markdown-body table tr {
+  background-color: #ffffff;
+  border-top: 1px solid #d1d9e0b3;
+}
+
+.markdown-body table tr:nth-child(2n) {
+  background-color: #f6f8fa;
+}
+
+.markdown-body table img {
+  background-color: transparent;
+}
+
+.markdown-body img[align=right] {
+  padding-left: 20px;
+}
+
+.markdown-body img[align=left] {
+  padding-right: 20px;
+}
+
+.markdown-body .emoji {
+  max-width: none;
+  vertical-align: text-top;
+  background-color: transparent;
+}
+
+.markdown-body span.frame {
+  display: block;
+  overflow: hidden;
+}
+
+.markdown-body span.frame>span {
+  display: block;
+  float: left;
+  width: auto;
+  padding: 7px;
+  margin: 13px 0 0;
+  overflow: hidden;
+  border: 1px solid #d1d9e0;
+}
+
+.markdown-body span.frame span img {
+  display: block;
+  float: left;
+}
+
+.markdown-body span.frame span span {
+  display: block;
+  padding: 5px 0 0;
+  clear: both;
+  color: #1f2328;
+}
+
+.markdown-body span.align-center {
+  display: block;
+  overflow: hidden;
+  clear: both;
+}
+
+.markdown-body span.align-center>span {
+  display: block;
+  margin: 13px auto 0;
+  overflow: hidden;
+  text-align: center;
+}
+
+.markdown-body span.align-center span img {
+  margin: 0 auto;
+  text-align: center;
+}
+
+.markdown-body span.align-right {
+  display: block;
+  overflow: hidden;
+  clear: both;
+}
+
+.markdown-body span.align-right>span {
+  display: block;
+  margin: 13px 0 0;
+  overflow: hidden;
+  text-align: right;
+}
+
+.markdown-body span.align-right span img {
+  margin: 0;
+  text-align: right;
+}
+
+.markdown-body span.float-left {
+  display: block;
+  float: left;
+  margin-right: 13px;
+  overflow: hidden;
+}
+
+.markdown-body span.float-left span {
+  margin: 13px 0 0;
+}
+
+.markdown-body span.float-right {
+  display: block;
+  float: right;
+  margin-left: 13px;
+  overflow: hidden;
+}
+
+.markdown-body span.float-right>span {
+  display: block;
+  margin: 13px auto 0;
+  overflow: hidden;
+  text-align: right;
+}
+
+.markdown-body code,
+.markdown-body tt {
+  padding: .2em .4em;
+  margin: 0;
+  font-size: 85%;
+  white-space: break-spaces;
+  background-color: #818b981f;
+  border-radius: 6px;
+}
+
+.markdown-body code br,
+.markdown-body tt br {
+  display: none;
+}
+
+.markdown-body del code {
+  text-decoration: inherit;
+}
+
+.markdown-body samp {
+  font-size: 85%;
+}
+
+.markdown-body pre code {
+  font-size: 100%;
+}
+
+.markdown-body pre>code {
+  padding: 0;
+  margin: 0;
+  word-break: normal;
+  white-space: pre;
+  background: transparent;
+  border: 0;
+}
+
+.markdown-body .highlight {
+  margin-bottom: 1rem;
+}
+
+.markdown-body .highlight pre {
+  margin-bottom: 0;
+  word-break: normal;
+}
+
+.markdown-body .highlight pre,
+.markdown-body pre {
+  padding: 1rem;
+  overflow: auto;
+  font-size: 85%;
+  line-height: 1.45;
+  color: #1f2328;
+  background-color: #f6f8fa;
+  border-radius: 6px;
+}
+
+.markdown-body pre code,
+.markdown-body pre tt {
+  display: inline;
+  max-width: auto;
+  padding: 0;
+  margin: 0;
+  overflow: visible;
+  line-height: inherit;
+  word-wrap: normal;
+  background-color: transparent;
+  border: 0;
+}
+
+.markdown-body .csv-data td,
+.markdown-body .csv-data th {
+  padding: 5px;
+  overflow: hidden;
+  font-size: 12px;
+  line-height: 1;
+  text-align: left;
+  white-space: nowrap;
+}
+
+.markdown-body .csv-data .blob-num {
+  padding: 10px 0.5rem 9px;
+  text-align: right;
+  background: #ffffff;
+  border: 0;
+}
+
+.markdown-body .csv-data tr {
+  border-top: 0;
+}
+
+.markdown-body .csv-data th {
+  font-weight: 600;
+  background: #f6f8fa;
+  border-top: 0;
+}
+
+.markdown-body [data-footnote-ref]::before {
+  content: "[";
+}
+
+.markdown-body [data-footnote-ref]::after {
+  content: "]";
+}
+
+.markdown-body .footnotes {
+  font-size: 12px;
+  color: #59636e;
+  border-top: 1px solid #d1d9e0;
+}
+
+.markdown-body .footnotes ol {
+  padding-left: 1rem;
+}
+
+.markdown-body .footnotes ol ul {
+  display: inline-block;
+  padding-left: 1rem;
+  margin-top: 1rem;
+}
+
+.markdown-body .footnotes li {
+  position: relative;
+}
+
+.markdown-body .footnotes li:target::before {
+  position: absolute;
+  top: calc(0.5rem*-1);
+  right: calc(0.5rem*-1);
+  bottom: calc(0.5rem*-1);
+  left: calc(1.5rem*-1);
+  pointer-events: none;
+  content: "";
+  border: 2px solid #0969da;
+  border-radius: 6px;
+}
+
+.markdown-body .footnotes li:target {
+  color: #1f2328;
+}
+
+.markdown-body .footnotes .data-footnote-backref g-emoji {
+  font-family: monospace;
+}
+
+.markdown-body body:has(:modal) {
+  padding-right: var(--dialog-scrollgutter) !important;
+}
+
+.markdown-body .pl-c {
+  color: #59636e;
+}
+
+.markdown-body .pl-c1,
+.markdown-body .pl-s .pl-v {
+  color: #0550ae;
+}
+
+.markdown-body .pl-e,
+.markdown-body .pl-en {
+  color: #6639ba;
+}
+
+.markdown-body .pl-smi,
+.markdown-body .pl-s .pl-s1 {
+  color: #1f2328;
+}
+
+.markdown-body .pl-ent {
+  color: #0550ae;
+}
+
+.markdown-body .pl-k {
+  color: #cf222e;
+}
+
+.markdown-body .pl-s,
+.markdown-body .pl-pds,
+.markdown-body .pl-s .pl-pse .pl-s1,
+.markdown-body .pl-sr,
+.markdown-body .pl-sr .pl-cce,
+.markdown-body .pl-sr .pl-sre,
+.markdown-body .pl-sr .pl-sra {
+  color: #0a3069;
+}
+
+.markdown-body .pl-v,
+.markdown-body .pl-smw {
+  color: #953800;
+}
+
+.markdown-body .pl-bu {
+  color: #82071e;
+}
+
+.markdown-body .pl-ii {
+  color: #f6f8fa;
+  background-color: #82071e;
+}
+
+.markdown-body .pl-c2 {
+  color: #f6f8fa;
+  background-color: #cf222e;
+}
+
+.markdown-body .pl-sr .pl-cce {
+  font-weight: bold;
+  color: #116329;
+}
+
+.markdown-body .pl-ml {
+  color: #3b2300;
+}
+
+.markdown-body .pl-mh,
+.markdown-body .pl-mh .pl-en,
+.markdown-body .pl-ms {
+  font-weight: bold;
+  color: #0550ae;
+}
+
+.markdown-body .pl-mi {
+  font-style: italic;
+  color: #1f2328;
+}
+
+.markdown-body .pl-mb {
+  font-weight: bold;
+  color: #1f2328;
+}
+
+.markdown-body .pl-md {
+  color: #82071e;
+  background-color: #ffebe9;
+}
+
+.markdown-body .pl-mi1 {
+  color: #116329;
+  background-color: #dafbe1;
+}
+
+.markdown-body .pl-mc {
+  color: #953800;
+  background-color: #ffd8b5;
+}
+
+.markdown-body .pl-mi2 {
+  color: #d1d9e0;
+  background-color: #0550ae;
+}
+
+.markdown-body .pl-mdr {
+  font-weight: bold;
+  color: #8250df;
+}
+
+.markdown-body .pl-ba {
+  color: #59636e;
+}
+
+.markdown-body .pl-sg {
+  color: #818b98;
+}
+
+.markdown-body .pl-corl {
+  text-decoration: underline;
+  color: #0a3069;
+}
+
+.markdown-body [role=button]:focus:not(:focus-visible),
+.markdown-body [role=tabpanel][tabindex="0"]:focus:not(:focus-visible),
+.markdown-body button:focus:not(:focus-visible),
+.markdown-body summary:focus:not(:focus-visible),
+.markdown-body a:focus:not(:focus-visible) {
+  outline: none;
+  box-shadow: none;
+}
+
+.markdown-body [tabindex="0"]:focus:not(:focus-visible),
+.markdown-body details-dialog:focus:not(:focus-visible) {
+  outline: none;
+}
+
+.markdown-body g-emoji {
+  display: inline-block;
+  min-width: 1ch;
+  font-family: "Apple Color Emoji","Segoe UI Emoji","Segoe UI Symbol";
+  font-size: 1em;
+  font-style: normal !important;
+  font-weight: 400;
+  line-height: 1;
+  vertical-align: -0.075em;
+}
+
+.markdown-body g-emoji img {
+  width: 1em;
+  height: 1em;
+}
+
+.markdown-body .task-list-item {
+  list-style-type: none;
+}
+
+.markdown-body .task-list-item label {
+  font-weight: 400;
+}
+
+.markdown-body .task-list-item.enabled label {
+  cursor: pointer;
+}
+
+.markdown-body .task-list-item+.task-list-item {
+  margin-top: 0.25rem;
+}
+
+.markdown-body .task-list-item .handle {
+  display: none;
+}
+
+.markdown-body .task-list-item-checkbox {
+  margin: 0 .2em .25em -1.4em;
+  vertical-align: middle;
+}
+
+.markdown-body ul:dir(rtl) .task-list-item-checkbox {
+  margin: 0 -1.6em .25em .2em;
+}
+
+.markdown-body ol:dir(rtl) .task-list-item-checkbox {
+  margin: 0 -1.6em .25em .2em;
+}
+
+.markdown-body .contains-task-list:hover .task-list-item-convert-container,
+.markdown-body .contains-task-list:focus-within .task-list-item-convert-container {
+  display: block;
+  width: auto;
+  height: 24px;
+  overflow: visible;
+  clip: auto;
+}
+
+.markdown-body ::-webkit-calendar-picker-indicator {
+  filter: invert(50%);
+}
+
+.markdown-body .markdown-alert {
+  padding: 0.5rem 1rem;
+  margin-bottom: 1rem;
+  color: inherit;
+  border-left: .25em solid #d1d9e0;
+}
+
+.markdown-body .markdown-alert>:first-child {
+  margin-top: 0;
+}
+
+.markdown-body .markdown-alert>:last-child {
+  margin-bottom: 0;
+}
+
+.markdown-body .markdown-alert .markdown-alert-title {
+  display: flex;
+  font-weight: 500;
+  align-items: center;
+  line-height: 1;
+}
+
+.markdown-body .markdown-alert.markdown-alert-note {
+  border-left-color: #0969da;
+}
+
+.markdown-body .markdown-alert.markdown-alert-note .markdown-alert-title {
+  color: #0969da;
+}
+
+.markdown-body .markdown-alert.markdown-alert-important {
+  border-left-color: #8250df;
+}
+
+.markdown-body .markdown-alert.markdown-alert-important .markdown-alert-title {
+  color: #8250df;
+}
+
+.markdown-body .markdown-alert.markdown-alert-warning {
+  border-left-color: #9a6700;
+}
+
+.markdown-body .markdown-alert.markdown-alert-warning .markdown-alert-title {
+  color: #9a6700;
+}
+
+.markdown-body .markdown-alert.markdown-alert-tip {
+  border-left-color: #1a7f37;
+}
+
+.markdown-body .markdown-alert.markdown-alert-tip .markdown-alert-title {
+  color: #1a7f37;
+}
+
+.markdown-body .markdown-alert.markdown-alert-caution {
+  border-left-color: #cf222e;
+}
+
+.markdown-body .markdown-alert.markdown-alert-caution .markdown-alert-title {
+  color: #d1242f;
+}
+
+.markdown-body>*:first-child>.heading-element:first-child {
+  margin-top: 0 !important;
+}
+
+.markdown-body .highlight pre:has(+.zeroclipboard-container) {
+  min-height: 52px;
+}
+
diff --git a/src/frames/exportdialog.cpp b/src/frames/exportdialog.cpp
index f2ba33b..8dd8fbf 100644
--- a/src/frames/exportdialog.cpp
+++ b/src/frames/exportdialog.cpp
@@ -19,5 +19,9 @@ int ExportDialog::getResult()
     {
         return MARKDOWN;
     }
+    else if (ui->pdfRadio->isChecked())
+    {
+        return PDF;
+    }
     return PLAIN;
 }
diff --git a/src/frames/exportdialog.h b/src/frames/exportdialog.h
index 2fb2536..124bf94 100644
--- a/src/frames/exportdialog.h
+++ b/src/frames/exportdialog.h
@@ -5,6 +5,7 @@
 
 #define MARKDOWN 1
 #define PLAIN 2
+#define PDF 3
 
 namespace Ui {
 class ExportDialog;
diff --git a/src/frames/exportdialog.ui b/src/frames/exportdialog.ui
index a6e9516..ef1aa82 100644
--- a/src/frames/exportdialog.ui
+++ b/src/frames/exportdialog.ui
@@ -35,10 +35,10 @@
     </rect>
    </property>
    <property name="orientation">
-    <enum>Qt::Horizontal</enum>
+    <enum>Qt::Orientation::Horizontal</enum>
    </property>
    <property name="standardButtons">
-    <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+    <set>QDialogButtonBox::StandardButton::Cancel|QDialogButtonBox::StandardButton::Ok</set>
    </property>
   </widget>
   <widget class="QRadioButton" name="markdownButton">
@@ -61,7 +61,7 @@
    <property name="geometry">
     <rect>
      <x>30</x>
-     <y>60</y>
+     <y>40</y>
      <width>92</width>
      <height>23</height>
     </rect>
@@ -70,6 +70,19 @@
     <string>Text file</string>
    </property>
   </widget>
+  <widget class="QRadioButton" name="pdfRadio">
+   <property name="geometry">
+    <rect>
+     <x>30</x>
+     <y>60</y>
+     <width>92</width>
+     <height>23</height>
+    </rect>
+   </property>
+   <property name="text">
+    <string>PDF file</string>
+   </property>
+  </widget>
  </widget>
  <resources/>
  <connections>
diff --git a/src/frames/mainwindow.cpp b/src/frames/mainwindow.cpp
index b130f89..cfb2265 100644
--- a/src/frames/mainwindow.cpp
+++ b/src/frames/mainwindow.cpp
@@ -7,14 +7,22 @@
 #include "renamedialog.h"
 #include "exportdialog.h"
 
+#include <chrono>
+
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
     , ui(new Ui::MainWindow)
 {
     ui->setupUi(this);
     timer = new QTimer(this);
-    updateViewThread = nullptr;
     parser = std::make_shared<maddy::Parser>();
+
+    // open stylesheet resource
+    QFile f(":/css/resources/style.css");
+    f.open(QFile::OpenModeFlag::ReadOnly);
+    style = f.readAll();
+    f.close();
+
     connect(ui->actionAdd_folder, &QAction::triggered, this, &MainWindow::createFolder);
     connect(ui->actionAdd, &QAction::triggered, this, &MainWindow::createNote);
     connect(ui->actionSave, &QAction::triggered, this, &MainWindow::save);
@@ -32,10 +40,39 @@ MainWindow::MainWindow(QWidget *parent)
     this->cfgmng = new ConfigManager();
     updateListView();
     connect(timer, &QTimer::timeout, this, &MainWindow::save);
+
+    // start render thread
+    threaddone = new bool(false);
+    queue = new QVector<QString>;
+    queueMutex = new QMutex();
+    updateViewThread = new std::thread([this](){
+        while (!*threaddone) {
+            queueMutex->lock();
+            if (queue->count() == 0) {
+                queueMutex->unlock();
+                std::this_thread::sleep_for(std::chrono::milliseconds(500));
+                continue;
+            }
+            QString content = (*queue)[0];
+            queue->pop_front();
+            queueMutex->unlock();
+            std::stringstream markdownInput(content.toStdString());
+            QString htmlOutput = "<html><body class='markdown-body'>";
+            htmlOutput += QString::fromStdString(parser->Parse(markdownInput));
+            htmlOutput += "</body><style>" + style + "</style></html>";
+            emit updateViewers(htmlOutput);
+        }
+    });
 }
 
 MainWindow::~MainWindow()
 {
+    *threaddone = true;
+    updateViewThread->join();
+    delete queue;
+    delete queueMutex;
+    delete threaddone;
+    delete updateViewThread;
     delete timer;
     delete savemng;
     delete ui;
@@ -309,6 +346,10 @@ void MainWindow::exportNote()
                 {
                     filter = "Markdown file (*.md)";
                 }
+                else if (fileType == PDF)
+                {
+                    filter = "PDF file (*.pdf)";
+                }
                 QString fileName = QFileDialog::getSaveFileName(this, tr("Export note"), "", filter);
                 if (!fileName.isEmpty())
                 {
@@ -320,13 +361,27 @@ void MainWindow::exportNote()
                     {
                         fileName += ".txt";
                     }
-                    QFile *f = new QFile(fileName);
-                    if (f->open(QIODevice::WriteOnly))
+                    else if (fileType == PDF && !fileName.endsWith(".pdf", Qt::CaseInsensitive))
                     {
-                        f->write(n->getContent().toUtf8());
-                        f->close();
+                        fileName += ".pdf";
                     }
-                    delete f;
+
+                    if (fileType == PDF)
+                    {
+                        ui->webEngineViewer->printToPdf(fileName);
+                    }
+                    else
+                    {
+                        QFile *f = new QFile(fileName);
+                        if (f->open(QIODevice::WriteOnly))
+                        {
+
+                            f->write(n->getContent().toUtf8());
+                            f->close();
+                        }
+                        delete f;
+                    }
+
                 }
             }
         }
@@ -413,19 +468,12 @@ void MainWindow::updateListView()
 
 void MainWindow::updateHTMLView()
 {
-    if (threadLock.tryLock()) {
-        updateViewThread = new std::thread([this](){
-            QString content = ui->plainTextEdit->toPlainText();
-            std::stringstream markdownInput(content.toStdString());
-            QString htmlOutput = QString::fromStdString(parser->Parse(markdownInput));
-            emit updateViewers(htmlOutput);
-            threadLock.unlock();
-        });
-    } else {
-        QTimer::singleShot(200, [this]() {
-            updateHTMLView();
-        });
+    queueMutex->lock();
+    if (queue->count() > 4) {
+        queue->pop_front();
     }
+    queue->append(ui->plainTextEdit->toPlainText());
+    queueMutex->unlock();
 }
 
 void MainWindow::clearAndDisableFields()
diff --git a/src/frames/mainwindow.h b/src/frames/mainwindow.h
index 4eb3d90..c3fd05d 100644
--- a/src/frames/mainwindow.h
+++ b/src/frames/mainwindow.h
@@ -61,9 +61,15 @@ private:
     SaveManager *savemng;
     ConfigManager *cfgmng;
     QTimer *timer;
-    std::thread *updateViewThread;
     std::shared_ptr<maddy::Parser> parser;
-    QMutex threadLock;
+
+    QString style;
+
+    //shared between threads
+    QVector<QString>* queue;
+    QMutex* queueMutex;
+    bool* threaddone;
+    std::thread *updateViewThread;
 
     void updateListView();
     void clearAndDisableFields();
diff --git a/src/frames/mainwindow.ui b/src/frames/mainwindow.ui
index f900f2d..fee8737 100644
--- a/src/frames/mainwindow.ui
+++ b/src/frames/mainwindow.ui
@@ -77,7 +77,7 @@
            <enum>QTabWidget::TabShape::Rounded</enum>
           </property>
           <property name="currentIndex">
-           <number>0</number>
+           <number>2</number>
           </property>
           <widget class="QWidget" name="tab_3">
            <attribute name="title">
diff --git a/static.qrc b/static.qrc
new file mode 100644
index 0000000..aa40dcb
--- /dev/null
+++ b/static.qrc
@@ -0,0 +1,5 @@
+<RCC>
+    <qresource prefix="/css">
+        <file>resources/style.css</file>
+    </qresource>
+</RCC>