Add dark theme (#499)

frontend/App.vue

@@ -90,5 +90,136 @@ html, body, #wrapper, #inner, .container {
   }
 }
 
+/* Dark Theme */
+@media (prefers-color-scheme: dark) {
+  :root {
+    /* Dark theme primary colors */
+    --color-primary-a0: #34b891;
+    --color-primary-a20: #6ec8a8;
+    --color-primary-transparent: #34b89123;
+
+    /* Dark theme surface colors */
+    --color-surface-a0: #121212;
+    --color-surface-a10: #282828;
+    --color-surface-a20: #3f3f3f;
+    --color-surface-a30: #575757;
+    --color-surface-a50: #8b8b8b;
+
+    --color-text: #fff;
+  }
+
+  html, body, .navbar {
+    background-color: var(--color-surface-a0);
+  }
+
+  .navbar-item,
+    .label,
+    .table,
+    .table thead th,
+    .modal-card-title,
+    .modal-card-body,
+    .button:focus,
+    .dropdown-item,
+    .checkbox:hover {
+    color: var(--color-text);
+  }
+
+  .box, .table, .modal-card-head, .modal-card-foot {
+    background-color: var(--color-surface-a10);
+  }
+
+  .table.is-hoverable tbody tr:not(.is-selected):hover {
+    background-color: var(--color-primary-transparent);;
+  }
+
+  .file-row a, .node-tree > a, strong {
+    color: var(--color-text) !important;
+  }
+
+  a.navbar-item:hover {
+    background-color: var(--color-primary-transparent);;
+    border-radius: 5px;
+  }
+
+  .input {
+    background-color: var(--color-surface-a20);
+    color: var(--color-text);
+    border-color: transparent;
+  }
+
+  .input:hover {
+    border-color: var(--color-primary-a20);
+  }
+
+  .table td, .table th {
+    border-bottom: 1px solid var(--color-surface-a0);
+  }
+
+  .is-current-sort {
+    border-bottom: 1px solid var(--color-primary-a0) !important;
+  }
+
+  /* Modal */
+  .modal-card-body {
+    background-color: var(--color-surface-a20);
+  }
+
+  .modal-card-head {
+    border-bottom: 1px solid var(--color-surface-a0);
+  }
+
+  .modal-card-foot {
+    border-top: 1px solid var(--color-surface-a0);
+  }
+
+  .modal input {
+    background-color: var(--color-surface-a30);
+  }
+
+  /* Button */
+  .button {
+    background-color: var(--color-primary-transparent);
+    border-color: var(--color-primary-a0);
+    color: var(--color-text)
+  }
+
+  .button:hover {
+    background-color: var(--color-primary-a0);
+    border-color: var(--color-primary-a0);
+    color: var(--color-text)
+  }
+
+  .button:active {
+    color: var(--color-primary-a0) !important;
+  }
+
+  /* Dropdown */
+  .dropdown-content {
+    background-color: var(--color-surface-a20);
+  }
+
+  a.dropdown-item:hover {
+    background-color: var(--color-primary-transparent);
+    color: var(--color-text);
+  }
+
+  a:hover {
+    color: var(--color-primary-a20);
+  }
+
+  #bottom-info {
+    color: var(--color-surface-a50);
+  }
+
+  .select select {
+    background-color: var(--color-surface-a20);
+    border-color: var(--color-surface-a20);
+    color: var(--color-text);
+  }
+
+  .select select:hover, .select:not(.is-multiple):not(.is-loading):hover::after {
+    border-color: var(--color-primary-a0);
+  }
+}
 </style>