Added SASS files to be pre-processed as CSS by a file watcher

assets/sass/themes/default/palettes/_stylebook.sass

@@ -0,0 +1,40 @@
+$message-border-width: 0.8vw
+$shared-shadow-depth: 0px 3px 5px
+$topbottom-framing-pad: 3vh 0
+
+@mixin render-columnist
+    display: flex
+    flex-flow: row nowrap
+    justify-content: center
+    align-items: stretch
+    column-gap: 4%
+
+@mixin render-strip
+    display: flex
+    flex-flow: column wrap
+    justify-content: center
+    align-items: center
+    row-gap: 4%
+
+@mixin make-notif($right-origin-x: 1.25vw, $bottom-origin-y: 3vh)
+    position: fixed
+    bottom: $bottom-origin-y
+    right: $right-origin-x
+    min-height: 6vh
+    max-height: 10vh
+    max-width: 15vw
+    overflow: scroll
+    -ms-overflow-style: none
+    scrollbar-width: none
+    padding: 5px
+    z-index: 1
+
+    &::-webkit-scrollbar
+        display: none
+
+@mixin init-font($font-name, $extension: "ttf")
+    font-family: $font-name 
+    src: url('./fonts/' + $font-name + '.' + $extension)
+
+@mixin set-corners($tl: 15%, $tr: 15%, $br: 15%, $bl: 15%)
+    border-radius: $tl $tr $br $bl