diff --git a/CHANGELOG.md b/CHANGELOG.md
index cbf70b8..f342eb3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,10 @@
 # 0.11.0
 
-* Added KaTeX support to task markdown (description and comments)
+* Added KaTeX support to task markdown (description and comments) using `$$...$$` for blocks and `$...$` for inline
 * Added syntax highlighting to code blocks in task markdown (description and comments)
 * Added column sorting
+* Added relations and custom fields to task cards
+* Added task card customisation using `board.css`
 
 # 0.10.0
 
diff --git a/docs/styles.md b/docs/styles.md
index 28bbffd..394cf59 100644
--- a/docs/styles.md
+++ b/docs/styles.md
@@ -8,6 +8,62 @@ Visual Studio Code will add `vscode-light`, `vscode-dark` and `vscode-high-contr
 
 Various Codicon icons have been used in this extension. Check [here](https://code.visualstudio.com/api/references/icons-in-labels) for a listing of available icons.
 
+## Column and tag configuration
+
+Each column is given a CSS class containing the column name in param-case. You can use this to apply custom styles to specific columns.
+
+For example, say we have a column called 'In Progress'. We can apply a custom border colour like so:
+```css
+.kanbn-column-in-progress .kanbn-column-task-list {
+    border-color: #ff0;
+}
+```
+
+Similarly, each tag is given a CSS class containing the tag name in param-case.
+
+For example, say we have tags called 'QA required' and 'Breaking Change'. We can apply custom styles like so:
+```css
+.kanbn-task-tag-qa-required {
+    background-color: #418;
+}
+
+.kanbn-task-tag-breaking-change {
+    background-color: #900;
+    color: #eee;
+    font-size: 1.5em;
+}
+```
+
+## Task card configuration
+
+The task cards that appear on the Kanbn board can be configured by showing or hiding different elements, or by applying alternative styles to them.
+
+The following elements are hidden by default (but can be re-enabled by adding a custom board style):
+- Updated date
+- Started date
+- Due date
+- Completed date
+- Number of comments
+- Relations
+
+Task fields are generally contained within a `.kanbn-task-data` element, most of which have `display: inline-block` by default. Additionally, the outer-container of a task card is given CSS classes containing the task's column name, completed status and overdue status.
+
+Here's an example of a task card style using some of the above features:
+```css
+.kanbn-task-data-relation {
+    display: block; /* this will display task relations, one per line */
+}
+
+.kanbn-task-data-relation-blocks {
+    color: #900;
+    font-weight: bold;  /* this will highlight task relations of type 'blocks' */
+}
+
+.kanbn-task-completed .kanbn-task-data-completed {
+    display: inline-block; /* this will show the completed date only for tasks that have been completed */
+}
+```
+
 ## CSS classes
 
 ### Kanbn board
@@ -24,7 +80,7 @@ Various Codicon icons have been used in this extension. Check [here](https://cod
 - `kanbn-header-description`
 - `kanbn-board`
 - `kanbn-column`
-- `kanbn-column-{Column name in snake-case}`
+- `kanbn-column-{Column name in param-case}`
 - `kanbn-column-name`
 - `kanbn-column-count`
 - `kanbn-column-button`
@@ -35,19 +91,30 @@ Various Codicon icons have been used in this extension. Check [here](https://cod
 - `kanbn-column-task-list`
 - `kanbn-column-task-list.drag-over`
 - `kanbn-task`
-- `kanbn-task-row`
-- `kanbn-task-name`
-- `kanbn-task-data`
-- `kanbn-task-tags`
-- `kanbn-task-tag`
-- `kanbn-task-tag-{Tag name in snake-case}`
-- `kanbn-task-assigned`
-- `kanbn-task-date`
-- `kanbn-task-workload`
-- `kanbn-task-progress`
+- `kanbn-task-{Column name in param-case}`
 - `kanbn-task-overdue`
-- `kanbn-task-comments`
-- `kanbn-task-sub-tasks`
+- `kanbn-task-completed`
+- `drag`
+- `kanbn-task-data`
+- `kanbn-task-data-label`
+- `kanbn-task-data-name`
+- `kanbn-task-data-tags`
+- `kanbn-task-tag`
+- `kanbn-task-tag-{Tag name in param-case}`
+- `kanbn-task-data-custom-field`
+- `kanbn-task-data-{Custom field name in param-case}
+- `kanbn-task-data-assigned`
+- `kanbn-task-data-created`
+- `kanbn-task-data-updated`
+- `kanbn-task-data-started`
+- `kanbn-task-data-due`
+- `kanbn-task-data-completed`
+- `kanbn-task-data-comments`
+- `kanbn-task-data-sub-tasks`
+- `kanbn-task-data-relation`
+- `kanbn-task-data-relation-{Relation type in param-case}`
+- `kanbn-task-data-workload`
+- `kanbn-task-progress`
 
 ### Task editor
 
@@ -107,7 +174,7 @@ Various Codicon icons have been used in this extension. Check [here](https://cod
 - `kanbn-task-editor-row-tag`
 - `kanbn-task-editor-field-tag`
 - `kanbn-task-editor-tag-highlight`
-- `kanbn-task-tag-{Tag name in snake-case}`
+- `kanbn-task-tag-{Tag name in param-case}`
 
 ### Burndown chart
 
diff --git a/ext-src/KanbnBoardPanel.ts b/ext-src/KanbnBoardPanel.ts
index 6ecc88e..381d3af 100644
--- a/ext-src/KanbnBoardPanel.ts
+++ b/ext-src/KanbnBoardPanel.ts
@@ -79,6 +79,7 @@ export default class KanbnBoardPanel {
         startedColumns: index.options.startedColumns ?? [],
         completedColumns: index.options.completedColumns ?? [],
         columnSorting: index.options.columnSorting ?? {},
+        customFields: index.options.customFields ?? [],
         dateFormat: KanbnBoardPanel.currentPanel._kanbn.getDateFormat(index),
         showBurndownButton: vscode.workspace.getConfiguration("kanbn").get("showBurndownButton"),
         showSprintButton: vscode.workspace.getConfiguration("kanbn").get("showSprintButton"),
diff --git a/package-lock.json b/package-lock.json
index 2f017b6..4013a19 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1352,9 +1352,9 @@
       }
     },
     "@basementuniverse/kanbn": {
-      "version": "0.9.0",
-      "resolved": "https://registry.npmjs.org/@basementuniverse/kanbn/-/kanbn-0.9.0.tgz",
-      "integrity": "sha512-LYJlJ6/KLkxqW/ZpPkLsAYTZ6ki5wmP9ZIgLPNW28+KVXhFz78/+3amoynMeOFUOBiKymCJYlKtvly6y0CvdTg==",
+      "version": "0.10.0",
+      "resolved": "https://registry.npmjs.org/@basementuniverse/kanbn/-/kanbn-0.10.0.tgz",
+      "integrity": "sha512-inNRbX1ZuiUiub0PbEDJAZGI9m92+AwGWnoByEZEHAq0L8rD1Z8DZVzeyXQDhrNdt8gpkjINR8+l8NJ8Tmqc0Q==",
       "requires": {
         "asciichart": "^1.5.25",
         "auto-load": "^3.0.4",
@@ -4168,9 +4168,9 @@
       "dev": true
     },
     "chrono-node": {
-      "version": "2.2.6",
-      "resolved": "https://registry.npmjs.org/chrono-node/-/chrono-node-2.2.6.tgz",
-      "integrity": "sha512-ahgxpY4ihg3frV5t7pZYrS0Iap5MErTQ7whVNBxbiLjplc2HhGwj3zgr0dEnJos/FAuZVjrHoky8J9YiNc5ZKQ==",
+      "version": "2.2.7",
+      "resolved": "https://registry.npmjs.org/chrono-node/-/chrono-node-2.2.7.tgz",
+      "integrity": "sha512-QQxlQUwebgNJDtUJpRQlhKoJJgSfvNTe6Zk1LgyVHVnbCj6xKygmiviJonS/n5A4xd9qjEl1u+ke2vzD77ty/g==",
       "requires": {
         "dayjs": "^1.10.0"
       }
@@ -10245,9 +10245,9 @@
       }
     },
     "humanize-duration": {
-      "version": "3.26.0",
-      "resolved": "https://registry.npmjs.org/humanize-duration/-/humanize-duration-3.26.0.tgz",
-      "integrity": "sha512-SddekX3p5ApvPY6bbAYppGKe874jP6iFZXYtrQToDV4R0j2UpTYPqwTFM2QpXpuw9DhS/eXTUnKYTF9TbXAJ6A=="
+      "version": "3.27.0",
+      "resolved": "https://registry.npmjs.org/humanize-duration/-/humanize-duration-3.27.0.tgz",
+      "integrity": "sha512-qLo/08cNc3Tb0uD7jK0jAcU5cnqCM0n568918E7R2XhMr/+7F37p4EY062W/stg7tmzvknNn9b/1+UhVRzsYrQ=="
     },
     "iconv-lite": {
       "version": "0.4.24",
@@ -13798,9 +13798,9 @@
       "dev": true
     },
     "nextgen-events": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/nextgen-events/-/nextgen-events-1.4.0.tgz",
-      "integrity": "sha512-bwSpShfuLg/lcRFokZvtUcrn5kumy6uRI6Jc+QWzH+bW6ZRdog7LfwAwhqeTzVfsprZgDGrctr6rO5aJhcdAfg=="
+      "version": "1.5.2",
+      "resolved": "https://registry.npmjs.org/nextgen-events/-/nextgen-events-1.5.2.tgz",
+      "integrity": "sha512-0ZEIRQywH5Oxt2IYYufRltQg/KjXhKM7f7MHve+ZIRaKnIR1PPYEXAl2WBmej5Sf0Qh2GgE/21sMRZVuOyxLzw=="
     },
     "nice-try": {
       "version": "1.0.5",
diff --git a/package.json b/package.json
index 3d28eb4..47088f8 100644
--- a/package.json
+++ b/package.json
@@ -98,7 +98,7 @@
     }
   },
   "dependencies": {
-    "@basementuniverse/kanbn": "^0.9.0",
+    "@basementuniverse/kanbn": "^0.10.0",
     "dateformat": "^4.5.1",
     "formik": "^2.2.6",
     "git-user-name": "^2.0.0",
diff --git a/src/App.tsx b/src/App.tsx
index 89119e9..a033a1f 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -18,6 +18,7 @@ function App() {
   const [startedColumns, setStartedColumns] = useState([]);
   const [completedColumns, setCompletedColumns] = useState([]);
   const [columnSorting, setColumnSorting] = useState({});
+  const [customFields, setCustomFields] = useState([]);
   const [dateFormat, setDateFormat] = useState('');
   const [task, setTask] = useState({});
   const [tasks, setTasks] = useState({});
@@ -48,6 +49,7 @@ function App() {
         setStartedColumns(event.data.startedColumns);
         setCompletedColumns(event.data.completedColumns);
         setColumnSorting(event.data.columnSorting);
+        setCustomFields(event.data.customFields);
         setShowBurndownButton(event.data.showBurndownButton);
         setShowSprintButton(event.data.showSprintButton);
 
@@ -101,6 +103,7 @@ function App() {
           startedColumns={startedColumns}
           completedColumns={completedColumns}
           columnSorting={columnSorting}
+          customFields={customFields}
           dateFormat={dateFormat}
           showBurndownButton={showBurndownButton}
           showSprintButton={showSprintButton}
diff --git a/src/Board.tsx b/src/Board.tsx
index 270204c..639d79a 100644
--- a/src/Board.tsx
+++ b/src/Board.tsx
@@ -140,6 +140,7 @@ const Board = ({
   startedColumns,
   completedColumns,
   columnSorting,
+  customFields,
   dateFormat,
   showBurndownButton,
   showSprintButton,
@@ -153,6 +154,7 @@ const Board = ({
   startedColumns: string[],
   completedColumns: string[],
   columnSorting: { [columnName: string]: { field: string, order: 'ascending' | 'descending' }[] },
+  customFields: { name: string, type: 'boolean' | 'date' | 'number' | 'string' }[],
   dateFormat: string,
   showBurndownButton: boolean,
   showSprintButton: boolean,
@@ -326,6 +328,8 @@ const Board = ({
                         >
                           {column.filter(task => filterTask(task, taskFilter)).map((task, position) => <TaskItem
                             task={task}
+                            columnName={columnName}
+                            customFields={customFields}
                             position={position}
                             dateFormat={dateFormat}
                             vscode={vscode}
diff --git a/src/TaskItem.tsx b/src/TaskItem.tsx
index 77c877d..96932a0 100644
--- a/src/TaskItem.tsx
+++ b/src/TaskItem.tsx
@@ -4,8 +4,10 @@ import formatDate from 'dateformat';
 import { paramCase } from '@basementuniverse/kanbn/src/utility';
 import VSCodeApi from "./VSCodeApi";
 
-const TaskItem = ({ task, position, dateFormat, vscode }: {
+const TaskItem = ({ task, columnName, customFields, position, dateFormat, vscode }: {
   task: KanbnTask,
+  columnName: string,
+  customFields: { name: string, type: 'boolean' | 'date' | 'number' | 'string' }[],
   position: number,
   dateFormat: string,
   vscode: VSCodeApi
@@ -38,6 +40,9 @@ const TaskItem = ({ task, position, dateFormat, vscode }: {
             {...provided.dragHandleProps}
             className={[
               'kanbn-task',
+              `kanbn-task-column-${paramCase(columnName)}`,
+              checkOverdue(task) ? 'kanbn-task-overdue' : null,
+              !!completedDate ? 'kanbn-task-completed' : null,
               snapshot.isDragging ? 'drag' : null
             ].filter(i => i).join(' ')}
             style={{
@@ -45,10 +50,9 @@ const TaskItem = ({ task, position, dateFormat, vscode }: {
               ...provided.draggableProps.style
             }}
           >
-            <div className="kanbn-task-row">
+            <div className="kanbn-task-data kanbn-task-data-name">
               <button
                 type="button"
-                className="kanbn-task-name"
                 onClick={() => {
                   vscode.postMessage({
                     command: 'kanbn.task',
@@ -61,76 +65,131 @@ const TaskItem = ({ task, position, dateFormat, vscode }: {
                 {task.name}
               </button>
             </div>
-            <div className="kanbn-task-row">
-              {
-                'tags' in task.metadata &&
-                task.metadata.tags!.length > 0 &&
-                <div className="kanbn-task-data kanbn-task-tags">
-                  {task.metadata.tags!.map(tag => {
-                    return (
-                      <span className={[
-                        'kanbn-task-tag',
-                        `kanbn-task-tag-${paramCase(tag)}`
-                      ].join(' ')}>
-                        {tag}
-                      </span>
-                    );
-                  })}
+            {
+              'tags' in task.metadata &&
+              task.metadata.tags!.length > 0 &&
+              <div className="kanbn-task-data kanbn-task-data-tags">
+                {task.metadata.tags!.map(tag => {
+                  return (
+                    <span className={[
+                      'kanbn-task-tag',
+                      `kanbn-task-tag-${paramCase(tag)}`
+                    ].join(' ')}>
+                      {tag}
+                    </span>
+                  );
+                })}
+              </div>
+            }
+            {
+              customFields.map(customField => {
+                if (customField.name in task.metadata) {
+                  return (
+                    <div className={[
+                      'kanbn-task-data kanbn-task-data-custom-field',
+                      `kanbn-task-data-${paramCase(customField.name)}`
+                    ].join(' ')}>
+                      {
+                        customField.type === 'boolean'
+                          ? (
+                            <>
+                              <i className={`codicon codicon-${task.metadata[customField.name]
+                                ? 'pass-filled'
+                                : 'circle-large-outline'}`}></i>
+                              {customField.name}
+                            </>
+                          ) : (
+                            <>
+                              <i className="codicon codicon-json"></i>
+                              <span title={customField.name}>
+                                {task.metadata[customField.name]}
+                              </span>
+                            </>
+                          )
+                      }
+                    </div>
+                  );
+                }
+                return (<></>);
+              })
+            }
+            {
+              'assigned' in task.metadata &&
+              !!task.metadata.assigned &&
+              <div className="kanbn-task-data kanbn-task-data-assigned">
+                <i className="codicon codicon-account"></i>{task.metadata.assigned}
+              </div>
+            }
+            {
+              createdDate &&
+              <div className="kanbn-task-data kanbn-task-data-created" title={`Created ${createdDate}`}>
+                <i className="codicon codicon-clock"></i>{createdDate}
+              </div>
+            }
+            {
+              updatedDate &&
+              <div className="kanbn-task-data kanbn-task-data-updated" title={`Updated ${updatedDate}`}>
+                <i className="codicon codicon-clock"></i>{updatedDate}
+              </div>
+            }
+            {
+              startedDate &&
+              <div className="kanbn-task-data kanbn-task-data-started" title={`Started ${startedDate}`}>
+                <i className="codicon codicon-run"></i>{startedDate}
+              </div>
+            }
+            {
+              dueDate &&
+              <div className="kanbn-task-data kanbn-task-data-due" title={`Due ${dueDate}`}>
+                <i className="codicon codicon-watch"></i>{dueDate}
+              </div>
+            }
+            {
+              completedDate &&
+              <div className="kanbn-task-data kanbn-task-data-completed" title={`Completed ${completedDate}`}>
+                <i className="codicon codicon-check"></i>{completedDate}
+              </div>
+            }
+            {
+              task.comments.length > 0 &&
+              <div className="kanbn-task-data kanbn-task-data-comments">
+                <i className="codicon codicon-comment"></i>{task.comments.length}
+              </div>
+            }
+            {
+              task.subTasks.length > 0 &&
+              <div className="kanbn-task-data kanbn-task-data-sub-tasks">
+                <i className="codicon codicon-tasklist"></i>
+                {task.subTasks.filter(subTask => subTask.completed).length} / {task.subTasks.length}
+              </div>
+            }
+            {
+              task.workload !== undefined &&
+              <div className="kanbn-task-data kanbn-task-data-workload">
+                <i className="codicon codicon-run"></i>{task.workload}
+              </div>
+            }
+            {
+              task.relations.length > 0 &&
+              task.relations.map(relation => (
+                <div className={[
+                  'kanbn-task-data kanbn-task-data-relation',
+                  relation.type ? `kanbn-task-data-relation-${relation.type}` : null,
+                ].join(' ')}>
+                  <i className="codicon codicon-link"></i>
+                  <span className="kanbn-task-data-label">
+                    {relation.type}
+                  </span> {relation.task}
                 </div>
-              }
-            </div>
-            <div className="kanbn-task-row">
-              {
-                'assigned' in task.metadata &&
-                !!task.metadata.assigned &&
-                <div className="kanbn-task-data kanbn-task-assigned">
-                  <i className="codicon codicon-account"></i>{task.metadata.assigned}
-                </div>
-              }
-              {
-                (createdDate || updatedDate) &&
-                <div className="kanbn-task-data kanbn-task-date" title={[
-                  createdDate ? `Created ${createdDate}` : null,
-                  updatedDate ? `Updated ${updatedDate}` : null,
-                  startedDate ? `Started ${startedDate}` : null,
-                  dueDate ? `Due ${dueDate}` : null,
-                  completedDate ? `Completed ${completedDate}` : null
-                ].filter(i => i).join('\n')}>
-                  <i
-                    className={[
-                      'codicon codicon-clock',
-                      checkOverdue(task) ? 'kanbn-task-overdue' : null
-                    ].filter(i => i).join(' ')}
-                  ></i>{updatedDate || createdDate}
-                </div>
-              }
-              {
-                task.comments.length > 0 &&
-                <div className="kanbn-task-data kanbn-task-comments">
-                  <i className="codicon codicon-comment"></i>{task.comments.length}
-                </div>
-              }
-              {
-                task.subTasks.length > 0 &&
-                <div className="kanbn-task-data kanbn-task-sub-tasks">
-                  <i className="codicon codicon-tasklist"></i>
-                  {task.subTasks.filter(subTask => subTask.completed).length} / {task.subTasks.length}
-                </div>
-              }
-              {
-                task.workload !== undefined &&
-                <div className="kanbn-task-data kanbn-task-workload">
-                  <i className="codicon codicon-run"></i>{task.workload}
-                </div>
-              }
-              {
-                task.workload !== undefined &&
-                task.progress !== undefined &&
-                <div className="kanbn-task-progress" style={{
-                  width: `${Math.min(1, Math.max(0, task.progress)) * 100}%`
-                }}></div>
-              }
-            </div>
+              ))
+            }
+            {
+              task.workload !== undefined &&
+              task.progress !== undefined &&
+              <div className="kanbn-task-progress" style={{
+                width: `${Math.min(1, Math.max(0, task.progress)) * 100}%`
+              }}></div>
+            }
           </div>
         );
       }}
diff --git a/src/index.css b/src/index.css
index e63ae9b..32ecf54 100644
--- a/src/index.css
+++ b/src/index.css
@@ -220,7 +220,33 @@ body.vscode-dark .kanbn-task {
     border-color: var(--vscode-activityBar-foreground);
 }
 
-.kanbn-task-name {
+.kanbn-task-data {
+    display: inline-block;
+    margin: 4px 8px 4px 0;
+    min-width: 30%;
+    opacity: 0.7;
+    font-size: 0.9em;
+    font-weight: normal;
+    font-style: italic;
+}
+
+.kanbn-task-data-label {
+    opacity: 0.4;
+}
+
+.kanbn-task-data-name {
+    display: block;
+}
+
+.kanbn-task-data-tags {
+    display: block;
+}
+
+.kanbn-task-data-relation {
+    display: block;
+}
+
+.kanbn-task-data-name button {
     margin: 0;
     padding: 0;
     border: none;
@@ -232,22 +258,13 @@ body.vscode-dark .kanbn-task {
     text-align: left;
 }
 
-.kanbn-task-name:focus, .kanbn-task-name:hover {
+.kanbn-task-data-name button:focus,
+.kanbn-task-data-name button:hover {
     border: none;
     outline: none;
     text-decoration: underline;
 }
 
-.kanbn-task-data {
-    display: inline-block;
-    margin: 4px 8px 4px 0;
-    min-width: 30%;
-    opacity: 0.7;
-    font-size: 0.9em;
-    font-weight: normal;
-    font-style: italic;
-}
-
 .kanbn-task div .codicon {
     position: relative;
     top: 1px;
@@ -291,7 +308,7 @@ body.vscode-dark .kanbn-task {
     background-color: #f42;
 }
 
-.kanbn-task-overdue {
+.kanbn-task-overdue .kanbn-task-data-due {
     color: #f22 !important;
 }
 
@@ -305,6 +322,30 @@ body.vscode-dark .kanbn-task {
     transition: width .5s ease-in-out;
 }
 
+.kanbn-task-data-updated {
+    display: none;
+}
+
+.kanbn-task-data-started {
+    display: none;
+}
+
+.kanbn-task-data-due {
+    display: none;
+}
+
+.kanbn-task-data-completed {
+    display: none;
+}
+
+.kanbn-task-data-comments {
+    display: none;
+}
+
+.kanbn-task-data-relation {
+    display: none;
+}
+
 /*-----------------------------------------------------------------------------
 Task editor styles
 -----------------------------------------------------------------------------*/