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src/components/ui/Category.tsx

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+import styled, { css } from "styled-components";
+import { Children } from "../../types/Preact";
+import { Plus } from "@styled-icons/feather";
+
+const CategoryBase = styled.div<Pick<Props, 'variant'>>`
+    font-size: 12px;
+    font-weight: 700;
+    text-transform: uppercase;
+
+    margin-top: 4px;
+    padding: 6px 10px;
+    margin-bottom: 4px;
+    white-space: nowrap;
+    
+    display: flex;
+    align-items: center;
+    flex-direction: row;
+    justify-content: space-between;
+
+    svg {
+        stroke: var(--foreground);
+        cursor: pointer;
+    }
+
+    ${ props => props.variant === 'uniform' && css`
+        padding-top: 6px;
+    ` }
+`;
+
+interface Props {
+    text: Children;
+    action?: () => void;
+    variant?: 'default' | 'uniform';
+}
+
+export default function Category(props: Props) {
+    return (
+        <CategoryBase>
+            {props.text}
+            {props.action && (
+                <Plus size={16} onClick={props.action} />
+            )}
+        </CategoryBase>
+    );
+};