Callouts are a block-level content element in MythOS that visually separates and highlights important information within a memo using a colored container box, an icon, and full rich text support.

A callout is inserted anywhere in a memo body using the /callout slash command and renders as a rounded-corner box with a light background tint and a left border accent in the selected color. The icon sits at the top left; text flows beside and below it. Because the block supports the same rich text as the rest of the editor — bold, italic, links, lists, inline code — callouts can carry anything from a one-line warning to a multi-paragraph structured note.

Key Facts

Category: Block-level editor element
Insertion: Type /callout on any blank line to insert
Default icon: 💡 (clickable to change via icon picker)
Color options: Blue (info), yellow (warning), red (error/important), green (success/tip), purple, gray
Rich text support: Full — bold, italic, lists, links, inline code
Nesting: Can be placed inside columns or other layout blocks; callouts cannot nest inside another callout

How It Works

Insertion — On any blank line, type /callout or / and select "Callout" from the command palette. The block appears immediately with the default 💡 icon and blue background.

Icon — The icon is left-aligned and acts as the primary visual signal for the callout's intent. Clicking it opens an icon picker where any emoji or supported icon identifier can be selected.

Color — The background tint and left border accent both follow the chosen color. A color picker is accessible from the block's hover toolbar. The full palette: blue, yellow, red, green, purple, gray.

Toolbar — Hovering or focusing the block surfaces a toolbar with three actions: change color, change icon, delete block.

Keyboard behavior — Pressing Enter inside a callout continues typing within the block. Pressing Enter on an empty line at the end of the block exits the callout and returns focus to the normal document flow.

Why It Matters

Callouts solve a persistent memo readability problem: important information buried in prose gets skipped. By giving warnings, tips, caveats, and critical notes a distinct visual container, callouts let readers triage information at a glance rather than reading linearly. This is especially valuable in longer memos where a single key constraint or instruction needs to stand out without interrupting the surrounding content.

The block's flexibility — full rich text, swappable icons, six color options — means a single element type covers the full range of annotation needs from casual "note to self" to formal "do not proceed without reading this."

FAQ

How do I insert a callout in MythOS?

Type /callout on any blank line in the editor, or type / and select "Callout" from the command menu. The block is inserted immediately at the cursor position.

Can I change the icon and color of a callout?

Yes. Click the icon to open the icon picker and select any emoji or supported icon. Hover the callout to reveal the toolbar, then use the color picker to select from blue, yellow, red, green, purple, or gray.

What content can I put inside a callout?

Callouts support full rich text — the same formatting available in the rest of the editor, including bold, italic, links, ordered and unordered lists, and inline code.

Can I nest a callout inside another callout?

No. Callouts cannot be nested inside other callouts. They can, however, be placed inside columns and other layout blocks.

How do I exit a callout when I'm done typing?

Press Enter on an empty line at the end of the callout. Focus returns to the normal document flow below the block.