diff --git a/scripts/userstyles.yml b/scripts/userstyles.yml
index 48eec40434..46b57f4be5 100644
--- a/scripts/userstyles.yml
+++ b/scripts/userstyles.yml
@@ -918,6 +918,13 @@ userstyles:
         > [!NOTE]
         > This theme also applies to the [Next.js](https://nextjs.org/) website.
     current-maintainers: [*ryanccn, *Dandraghas]
+  vikunja:
+    name: Vikunja
+    categories: [productivity, note_taking]
+    color: blue
+    readme:
+      app-link: "https://vikunja.io"
+    current-maintainers: [*Guaxinim5573]
   web.dev:
     name: web.dev
     categories: [development]
diff --git a/styles/vikunja/catppuccin.user.css b/styles/vikunja/catppuccin.user.css
new file mode 100644
index 0000000000..d25973bc99
--- /dev/null
+++ b/styles/vikunja/catppuccin.user.css
@@ -0,0 +1,330 @@
+/* ==UserStyle==
+@name Vikunja Catppuccin
+@namespace github.com/catppuccin/userstyles/styles/vikunja
+@homepageURL https://github.com/catppuccin/userstyles/tree/main/styles/vikunja
+@version 0.0.1
+@updateURL https://github.com/catppuccin/userstyles/raw/main/styles/vikunja/catppuccin.user.css
+@supportURL https://github.com/catppuccin/userstyles/issues?q=is%3Aopen+is%3Aissue+label%3Avikunja
+@description Soothing pastel theme for Vikunja
+@author Catppuccin
+@license MIT
+
+@preprocessor less
+@var select lightFlavor "Light Flavor" ["latte:Latte*", "frappe:Frappé", "macchiato:Macchiato", "mocha:Mocha"]
+@var select darkFlavor "Dark Flavor" ["latte:Latte", "frappe:Frappé", "macchiato:Macchiato", "mocha:Mocha*"]
+@var select accentColor "Accent" ["rosewater:Rosewater", "flamingo:Flamingo", "pink:Pink", "mauve:Mauve*", "red:Red", "maroon:Maroon", "peach:Peach", "yellow:Yellow", "green:Green", "teal:Teal", "blue:Blue", "sapphire:Sapphire", "sky:Sky", "lavender:Lavender", "subtext0:Gray"]
+==/UserStyle== */
+
+@-moz-document domain('try.vikunja.io') {
+  #catppuccin(@lookup, @accent) {
+    @rosewater: @catppuccin[@@lookup][@rosewater];
+    @flamingo: @catppuccin[@@lookup][@flamingo];
+    @pink: @catppuccin[@@lookup][@pink];
+    @mauve: @catppuccin[@@lookup][@mauve];
+    @red: @catppuccin[@@lookup][@red];
+    @maroon: @catppuccin[@@lookup][@maroon];
+    @peach: @catppuccin[@@lookup][@peach];
+    @yellow: @catppuccin[@@lookup][@yellow];
+    @green: @catppuccin[@@lookup][@green];
+    @teal: @catppuccin[@@lookup][@teal];
+    @sky: @catppuccin[@@lookup][@sky];
+    @sapphire: @catppuccin[@@lookup][@sapphire];
+    @blue: @catppuccin[@@lookup][@blue];
+    @lavender: @catppuccin[@@lookup][@lavender];
+    @text: @catppuccin[@@lookup][@text];
+    @subtext1: @catppuccin[@@lookup][@subtext1];
+    @subtext0: @catppuccin[@@lookup][@subtext0];
+    @overlay2: @catppuccin[@@lookup][@overlay2];
+    @overlay1: @catppuccin[@@lookup][@overlay1];
+    @overlay0: @catppuccin[@@lookup][@overlay0];
+    @surface2: @catppuccin[@@lookup][@surface2];
+    @surface1: @catppuccin[@@lookup][@surface1];
+    @surface0: @catppuccin[@@lookup][@surface0];
+    @base: @catppuccin[@@lookup][@base];
+    @mantle: @catppuccin[@@lookup][@mantle];
+    @crust: @catppuccin[@@lookup][@crust];
+    @accent-color: @catppuccin[@@lookup][@@accent];
+    
+    #hslbreakdown(@color, @item) {
+      --@{item}-h: hue(@color) !important;
+      --@{item}-s: saturation(@color) !important;
+      --@{item}-l: lightness(@color) !important;
+      --@{item}-light-l: lightness(@color) !important;
+      --@{item}-dark-l: lightness(@color) !important;
+      --@{item}-invert-l: lightness(@color) !important;
+    }
+    
+    color-scheme: if(@lookup = latte, light, dark);
+    
+    #hslbreakdown(@accent-color, primary);
+    --site-background: @mantle;
+    --content-heading-color: @text;
+    --card-header-color: @text;
+    --card-color: @text;
+    --body-color: @text;
+    --label-color: @text;
+    --strong-color: @text;
+    --primary: @accent-color;
+    --primary-invert: @base;
+    --switch-view-color: @base;
+    --input-background-color: @base;
+    --input-icon-color: @text;
+    --table-row-hover-background-color: @mantle;
+    --table-head-cell-color: @text;
+    --input-border-color: @overlay0;
+    --link-hover: @accent-color;
+    --white: @base;
+    --grey: @overlay0;
+    --card-content-background-color: @base;
+    --success: @green;
+    --danger: @red;
+    --warning: @yellow;
+    --text: @text;
+    --text-strong: @text;
+    --button-text-hover-background-color: @base;
+
+    body,
+    div#app,
+    header,
+    aside.menu-container,
+    footer.card-footer {
+      background: @mantle !important;
+    }
+    
+    svg.llama-cool > circle,
+    svg.logo > path[fill="#196aff"] {
+      fill: @accent-color;
+    }
+    
+    svg.logo,
+    h1,
+    .action-heading,
+    .subtitle a,
+    .project-menu-title {
+      color: @text !important;
+    }
+    
+    h1.title.task-id,
+    div.detail-title,
+    div.detail-title span {
+      color: @overlay0;
+    }
+    
+    button {
+      box-shadow: none !important;
+    }
+    
+    button.is-danger {
+      color: @red !important;
+      background: none;
+      
+      &:hover {
+        background: @red !important;
+        color: @surface0 !important;
+      }
+      
+      &:active {
+        background: darken(@red, 10%) !important;
+        color: @surface0 !important;
+      }
+    }
+    
+    button.is-success {
+      color: @green;
+      
+      &:hover {
+        background: @green !important;
+        color: @surface0 !important;
+      }
+      
+      &:active {
+        background: darken(@green, 10%) !important;
+      }
+    }
+    
+    .base-button.is-primary {      
+      color: @base;
+      
+      &:hover {
+        background: @accent-color;
+      }
+      
+      &:active {
+        background: darken(@accent-color, 10%);
+      }
+    }
+    
+    button.base-button:not(.is-primary) {
+      color: @text;
+    }
+    
+    div.action-buttons > button:hover,
+    button.search-result-button:hover,
+    .button.is-text:active,
+    .single-task:hover {
+      background: @mantle;
+    }
+    
+    p.is-editor-empty::before {
+      color: @overlay0;
+    }
+    
+    header > button.base-button.menu-button::before,
+    header > button.base-button.menu-button::after {
+      background: @text;
+    }
+    
+    .menu .menu-list {
+      li > a, li > a > span {
+        color: @text;
+      }
+      li > a.router-link-active {
+        color: @accent-color;
+      }
+      li:hover {
+        background: @mantle;
+      }
+    }
+    
+    a.base-button.menu-bottom-link {
+      color: @overlay0;
+      
+      &:hover {
+        color: @overlay2;
+      }
+    }
+    
+    div.is-done {
+      background: @green;
+      color: @surface0;
+    }
+    
+    div.tiptap__editor {
+      a {
+        color: @accent-color;
+      }
+    }
+    
+    p.created {
+      color: @overlay0;
+    }
+
+    .progress-bar {
+      --progress-bar-background-color: @crust;
+      --progress-value-background-color: @accent-color;
+    }
+    
+    /* Gantt */
+    div.gantt-container {
+      --grey-300: @surface0;
+    }
+    
+    div.g-gantt-chart {
+      .g-upper-timeunit,
+      .g-timeunit {
+        color: @text !important;
+      }
+      
+      .g-timeunit .today {
+        color: @surface0;
+      }
+      
+      .g-gantt-row {
+        background: @base;
+      }
+      
+      div.g-gantt-bar {
+        div.g-gantt-bar-label > div {
+          color: @surface0;
+        }
+        
+        .g-gantt-bar-handle-left,
+        .g-gantt-bar-handle-right {
+          background: darken(@accent-color, 10%);
+        }
+      }
+    }
+    
+    /* Kaban */
+    div.bucket-header,
+    div.task-item,
+    div.bucket-footer,
+    div.bucket > button.base-button {
+      background: @base;
+    }
+    
+    div.task-item > .task {
+      background: @mantle;
+      
+      span.icon,
+      span.priority-label {
+        background: @surface0;
+      }
+    }
+    
+    /* Command Palette */
+    span.result-title,
+    div.active-cmd.tag {
+      background: @base;
+    }
+    
+    /* Keyboard Shortcuts modal */
+    kbd {
+      color: @text;
+      border-color: @overlay0;
+      background: @base;
+    }
+    
+    div.message-wrapper > div.message.info {
+      background: @base;
+    }
+    
+    /* Popups */
+    div.v-popper__inner {
+      background: @mantle;
+      color: @text;
+    }
+    
+    div.v-popper__arrow-outer {
+      border-color: @mantle;
+    }
+    
+    .modal-mask {
+      span, p, strong {
+        color: @text !important;
+      }
+    }
+    
+    /* Vue Notifications */
+    .vue-notification {
+      color: @surface0 !important;
+    }
+    .vue-notification button {
+      background: none;
+      color: @overlay0 !important;
+    }
+    
+    .vue-notification.success {
+      background: @green;
+      border-left-color: darken(@green, 5%);
+    }
+  }
+
+  
+  :root.dark {
+    #catppuccin(@darkFlavor, @accentColor);
+  }
+  :root.light {
+    #catppuccin(@lightFlavor, @accentColor);
+  }
+}
+
+/* prettier-ignore */
+@catppuccin: {
+  @latte:     { @rosewater: #dc8a78; @flamingo: #dd7878; @pink: #ea76cb; @mauve: #8839ef; @red: #d20f39; @maroon: #e64553; @peach: #fe640b; @yellow: #df8e1d; @green: #40a02b; @teal: #179299; @sky: #04a5e5; @sapphire: #209fb5; @blue: #1e66f5; @lavender: #7287fd; @text: #4c4f69; @subtext1: #5c5f77; @subtext0: #6c6f85; @overlay2: #7c7f93; @overlay1: #8c8fa1; @overlay0: #9ca0b0; @surface2: #acb0be; @surface1: #bcc0cc; @surface0: #ccd0da; @base: #eff1f5; @mantle: #e6e9ef; @crust: #dce0e8; };
+  @frappe:    { @rosewater: #f2d5cf; @flamingo: #eebebe; @pink: #f4b8e4; @mauve: #ca9ee6; @red: #e78284; @maroon: #ea999c; @peach: #ef9f76; @yellow: #e5c890; @green: #a6d189; @teal: #81c8be; @sky: #99d1db; @sapphire: #85c1dc; @blue: #8caaee; @lavender: #babbf1; @text: #c6d0f5; @subtext1: #b5bfe2; @subtext0: #a5adce; @overlay2: #949cbb; @overlay1: #838ba7; @overlay0: #737994; @surface2: #626880; @surface1: #51576d; @surface0: #414559; @base: #303446; @mantle: #292c3c; @crust: #232634; };
+  @macchiato: { @rosewater: #f4dbd6; @flamingo: #f0c6c6; @pink: #f5bde6; @mauve: #c6a0f6; @red: #ed8796; @maroon: #ee99a0; @peach: #f5a97f; @yellow: #eed49f; @green: #a6da95; @teal: #8bd5ca; @sky: #91d7e3; @sapphire: #7dc4e4; @blue: #8aadf4; @lavender: #b7bdf8; @text: #cad3f5; @subtext1: #b8c0e0; @subtext0: #a5adcb; @overlay2: #939ab7; @overlay1: #8087a2; @overlay0: #6e738d; @surface2: #5b6078; @surface1: #494d64; @surface0: #363a4f; @base: #24273a; @mantle: #1e2030; @crust: #181926; };
+  @mocha:     { @rosewater: #f5e0dc; @flamingo: #f2cdcd; @pink: #f5c2e7; @mauve: #cba6f7; @red: #f38ba8; @maroon: #eba0ac; @peach: #fab387; @yellow: #f9e2af; @green: #a6e3a1; @teal: #94e2d5; @sky: #89dceb; @sapphire: #74c7ec; @blue: #89b4fa; @lavender: #b4befe; @text: #cdd6f4; @subtext1: #bac2de; @subtext0: #a6adc8; @overlay2: #9399b2; @overlay1: #7f849c; @overlay0: #6c7086; @surface2: #585b70; @surface1: #45475a; @surface0: #313244; @base: #1e1e2e; @mantle: #181825; @crust: #11111b; };
+}
+
+// vim:ft=less
diff --git a/styles/vikunja/preview.webp b/styles/vikunja/preview.webp
new file mode 100644
index 0000000000..f9113deec5
Binary files /dev/null and b/styles/vikunja/preview.webp differ