diff --git a/symbols.js b/symbols.js
index ee15945..4f2b442 100644
--- a/symbols.js
+++ b/symbols.js
@@ -26,6 +26,7 @@ const common = {
   pilcrow2: '❡',
   pilcrow: '¶',
   plusMinus: '±',
+  question: '?',
   section: '§',
   starsOff: '☆',
   starsOn: '★',
@@ -38,7 +39,6 @@ const windows = Object.assign({}, common, {
   ellipsisLarge: '...',
   ellipsis: '...',
   info: 'i',
-  question: '?',
   questionSmall: '?',
   pointer: '>',
   pointerSmall: '»',
@@ -54,7 +54,6 @@ const other = Object.assign({}, common, {
   ellipsisLarge: '⋯',
   ellipsis: '…',
   info: 'ℹ',
-  question: '?',
   questionFull: '？',
   questionSmall: '﹖',
   pointer: isLinux ? '▸' : '❯',
diff --git a/types/index.d.ts b/types/index.d.ts
index ca2d24a..933b141 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -4,14 +4,81 @@
 // Integrated by: Jordan Mele <https://github.com/Silic0nS0ldier>
 
 interface SymbolsType {
-  check: string;
-  cross: string;
-  info: string;
-  line: string;
-  pointer: string;
-  pointerSmall: string;
-  question: string;
-  warning: string;
+  /**
+   * `undefined` on windows, `✘` on other platforms.
+   */
+  ballotCross?: "✘";
+  ballotDisabled: "☒";
+  ballotOff: "☐";
+  ballotOn: "☑";
+  bullet: "•";
+  bulletWhite: "◦";
+  /**
+   * `√` on windows, `✔` on other platforms.
+   */
+  check: "√" | "✔";
+  /**
+   * `×` on windows, `✖` on other platforms.
+   */
+  cross: "×" | "✖";
+  /**
+   * `...` on windows, `⋯` on other platforms.
+   */
+  ellipsisLarge: "..." | "⋯";
+  /**
+   * `...` on windows, `…` on other platforms.
+   */
+  ellipsis: "..." | "…";
+  fullBlock: "█";
+  heart: "❤";
+  identicalTo: "≡";
+  info: "i" | "ℹ";
+  line: "─";
+  mark: "※";
+  middot: "·";
+  minus: "－";
+  multiplication: "×";
+  obelus: "÷";
+  pencilDownRight: "✎";
+  pencilRight: "✏";
+  pencilUpRight: "✐";
+  percent: "%";
+  pilcrow2: "❡";
+  pilcrow: "¶";
+  plusMinus: "±";
+  /**
+   * `>` on windows, `▸` on linux, and `❯` on other platforms.
+   */
+  pointer: ">" | "▸" | "❯";
+  /**
+   * `»` on windows, `‣` on linux, and `›` on other platforms.
+   */
+  pointerSmall: "»" | "‣" | "›";
+  question: "?";
+  /**
+   * `undefined` on windows, `？` on other platforms.
+   */
+  questionFull?: "？";
+  /**
+   * `?` on windows, `﹖` on other platforms.
+   */
+  questionSmall: "?" | "﹖";
+  /**
+   * `( )` on windows, `◯` on other platforms.
+   */
+  radioOff: "( )" | "◯";
+  /**
+   * `(*)` on windows, `◉` on other platforms.
+   */
+  radioOn: "(*)" | "◉";
+  section: "§";
+  starsOff: "☆";
+  starsOn: "★";
+  upDownArrow: "↕";
+  /**
+   * `‼` on windows, `⚠` on other platforms.
+   */
+  warning: "‼" | "⚠";
 }
 
 type StyleArrayStructure = [number, number];
diff --git a/types/test.ts b/types/test.ts
index 48bb3ea..873f623 100644
--- a/types/test.ts
+++ b/types/test.ts
@@ -60,3 +60,49 @@ s = colors.unstyle(colors.red("hello"));
 s = colors.strip(colors.red("hello"));
 
 s = colors.ok("deployment succeeded!");
+
+// common symbols
+s = colors.symbols.ballotDisabled;
+s = colors.symbols.ballotOff;
+s = colors.symbols.ballotOn;
+s = colors.symbols.bullet;
+s = colors.symbols.bulletWhite;
+s = colors.symbols.fullBlock;
+s = colors.symbols.heart;
+s = colors.symbols.identicalTo;
+s = colors.symbols.line;
+s = colors.symbols.mark;
+s = colors.symbols.middot;
+s = colors.symbols.minus;
+s = colors.symbols.multiplication;
+s = colors.symbols.obelus;
+s = colors.symbols.pencilDownRight;
+s = colors.symbols.pencilRight;
+s = colors.symbols.pencilUpRight;
+s = colors.symbols.percent;
+s = colors.symbols.pilcrow2;
+s = colors.symbols.pilcrow;
+s = colors.symbols.plusMinus;
+s = colors.symbols.section;
+s = colors.symbols.starsOff;
+s = colors.symbols.starsOn;
+s = colors.symbols.upDownArrow;
+
+// conditional symbols (differ across platforms)
+s = colors.symbols.check;
+s = colors.symbols.cross;
+s = colors.symbols.ellipsisLarge;
+s = colors.symbols.ellipsis;
+s = colors.symbols.info;
+s = colors.symbols.question;
+s = colors.symbols.questionSmall;
+s = colors.symbols.pointer;
+s = colors.symbols.pointerSmall;
+s = colors.symbols.radioOff;
+s = colors.symbols.radioOn;
+s = colors.symbols.warning;
+
+let maybeString: string | undefined;
+// unmatched other symbols (may be undefined)
+maybeString = colors.symbols.ballotCross;
+maybeString = colors.symbols.questionFull;