Test your font here:

 ☺☻♥♦♣♠•◘◦◙♂♀♪♫☼►◄↕‼¶§▬↨↑↓→←∟↔▲▼ !"#$%&'()*+,-./0123456789:;<=>?
@ABCDEFGHIJKLMNOPQRSTUVWXYZ[\]^_`abcdefghijklmnopqrstuvwxyz{|}~⌂
ÇüéâäàåçêëèïîìÄÅÉæÆôöòûùÿÖÜ¢£¥₧ƒáíóúñѪº¿⌐¬½¼¡«»░▒▓│┤╡╢╖╕╣║╗╝╜╛┐
└┴┬├─┼╞╟╚╔╩╦╠═╬╧╨╤╥╙╘╒╓╫╪┘┌█▄▌▐▀αßΓπΣσµτΦΘΩδ∞φε∩≡±≥≤⌠⌡÷≈°∙·√ⁿ²■ 

Slope continuity test:

 🭋🭀  🭉🬾   ◢◣      🭇🭄🭏🬼          🭈🭆🭂🭍🭑🬽         🭯   🭯   ██🭫███🭫██ 🮘🮘🮘🮘🮘🮘 🮙🮙🮙🮙🮙🮙
 🭅🭐  🭃🭎  ◢██◣    🭊🭁██🭌🬿      🭈🭆🭂██████🭍🭑🬽     ◢█◣ ◢█◣  █◤ ◥█◤ ◥█ 🮘🮘🮘🮘🮘🮘 🮙🮙🮙🮙🮙🮙
🭋██🭀 ██ ◢████◣ 🭇🭄██████🭏🬼 🭈🭆🭂████████████🭍🭑🬽 🭮███🮛███🭬 🭪   🮚   🭨 🮘🮘🮘🮘🮘🮘 🮙🮙🮙🮙🮙🮙
🭦██🭛 ██ ◥████◤ 🭢🭕██████🭠🭗 🭣🭧🭓████████████🭞🭜🭘  ◥█◤ ◥█◤  █◣ ◢█◣ ◢█ 🮘🮘🮘🮘🮘🮘 🮙🮙🮙🮙🮙🮙
 🭖🭡  🭔🭟  ◥██◤    🭥🭒██🭝🭚      🭣🭧🭓██████🭞🭜🭘      🭭   🭭   ██🭩███🭩██ 🮘🮘🮘🮘🮘🮘 🮙🮙🮙🮙🮙🮙
 🭦🭛  🭤🭙   ◥◤      🭢🭕🭠🭗          🭣🭧🭓🭞🭜🭘         
                                                     

     🮣🮧🮢  🮥 🮢 🮣 🮤
    🮣🮠 🮡🮢   🮠 🮡
   🮣🮧🮢  🮥 🮧🮣🮢
  🮣🮠 🮡🮢🮣🮠
 🮣🮤   🮥🮠  🮦🮡🮠
🮣🮠🮡🮢 🮣🮠
🮤  🮡🮦🮠
🮡🮢 🮣🮠
 🮡🮦🮠

		▁▂▃▄▅▆▇█
	▁▂▃▄▅▆▇█████████
▁▂▃▄▅▆▇█████████████████

▏
▎
▍
▌
▋
▊
▉
█
█▏
█▎
█▍
█▌
█▋
█▊
█▉
██
██▏
██▎
██▍
██▌
██▋
██▊
██▉
███

These characters add support for Teletext:

  🬀 🬁 🬂 🬃 🬄 🬅 🬆 🬇 🬈 🬉 🬊 🬋 🬌 🬍 🬎 🬏 🬐 🬑 🬒 🬓 ▌ 🬔 🬕 🬖 🬗 🬘 🬙 🬚 🬛 🬜 🬝
@ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ← ½ → ↑ #
🬞 🬟 🬠 🬡 🬢 🬣 🬤 🬥 🬦 🬧 ▐ 🬨 🬩 🬪 🬫 🬬 🬭 🬮 🬯 🬰 🬱 🬲 🬳 🬴 🬵 🬶 🬷 🬸 🬹 🬺 🬻 █

🬼 🬽 🬾 🬿 🭀 ◣ 🭁 🭂 🭃 🭄 🭅 🭆 🭨 🭩 🭰 ▒ 🭇 🭈 🭉 🭊 🭋 ◢ 🭌 🭍 🭎 🭏 🭐 🭑 🭪 🭫 🭵 █
┷ ┯ ┝ ┥ 🮤 🮥 🮦 🮧 🮠 🮡 🮢 🮣 ┿ • ● ○ │ ─ ┌ ┐ └ ┘ ├ ┤ ┬ ┴ ┼ ⭢ ⭠ ⭡ ⭣  
🭒 🭓 🭔 🭕 🭖 ◥ 🭗 🭘 🭙 🭚 🭛 🭜 🭬 🭭     🭝 🭞 🭟 🭠 🭡 ◤ 🭢 🭣 🭤 🭥 🭦 🭧 🭮 🭯    

Apple II MouseText:

  🮰 ⌛ ✓ 🮱 🮲 🮳 ← … ↓ ↑ ▔ ↲ ▉ 🮵 🮶 🮷 🮸 ─ 🭼 → ▒ 🮐 🮹 🮺 ▕ ◆ 🮀 🮻 🮼 ▏

  🮰 ⌛ ✓ 🮱 🮴 🮁 ← … ↓ ↑ ▔ ↲ ▉ 🮵 🮶 🮷 🮸 ─ 🭼 → ▒ 🮐 🮹 🮺 ▕ ◆ 🮀 🮻 🮼 ▏

PETSCII:

@ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ £ ] ↑ ←
  ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
─ ♠ 🭲 🭸 🭷 🭶 🭺 🭱 🭴 ╮ ╰ ╯ 🭼 ╲ ╱ 🭽 🭾 • 🭻 ♥ 🭰 ╭ ╳ ○ ♣ 🭵 ♦ ┼ 🮌 │ π ◥
  ▌ ▄ ▔ ▁ ▏ ▒ ▕ 🮏 ◤ 🮇 ├ ▗ └ ┐ ▂ ┌ ┴ ┬ ┤ ▎ ▍ 🮈 🮂 🮃 ▃ 🭿 ▖ ▝ ┘ ▘ ▚

@ a b c d e f g h i j k l m n o p q r s t u v w x y z [ £ ] ↑ ←
  ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
─ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ┼ 🮌 │ 🮖 🮘
  ▌ ▄ ▔ ▁ ▏ ▒ ▕ 🮏 🮙 🮇 ├ ▗ └ ┐ ▂ ┌ ┴ ┬ ┤ ▎ ▍ 🮈 🮂 🮃 ▃ ✓ ▖ ▝ ┘ ▘ ▚

ATASCII:

  ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
@ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _
♥ ├ ⎹ ┘ ┤ ┐ ╱ ╲ ◢ ▗ ◣ ▝ ▘ ⎺ ⎽ ▖ ♣ ┌ ─ ┼ • ▄ ⎸ ┬ ┴ ▌ └ ␛ ↑ ↓ ← →
♦ a b c d e f g h i j k l m n o p q r s t u v w x y z ♠ | 🢰 ◀ ▶

Atari ST:

  ⇧ ⇩ ⇨ ⇦ 🮽 🮾 🮿 ✓ 🕒 🔔 ♪ ␌ ␍   🯰 🯱 🯲 🯳 🯴 🯵 🯶 🯷 🯸 🯹 ə ␛    
  ! " # $ % & ' ( ) * + , - . / 0 1 2 3 4 5 6 7 8 9 : ; < = > ?
@ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _
` a b c d e f g h i j k l m n o p q r s t u v w x y z { | } ~ ⌂
Ç ü é â ä à å ç ê ë è ï î ì Ä Å É æ Æ ô ö ò û ù ÿ Ö Ü ¢ £ ¥ ß ƒ
á í ó ú ñ Ñ ª º ¿ ⌐ ¬ ½ ¼ ¡ « » ã õ Ø ø œ Œ À Ã Õ ¨ ´ † ¶ © ® ™
ij IJ א ב ג ד ה ו ז ח ט י כ ל מ נ ס ע פ צ ק ר ש ת ן ך ם ף ץ § ∧ ∞
α β Γ π Σ σ µ τ Φ Θ Ω δ ∮ ϕ ∈ ∩ ≡ ± ≥ ≤ ⌠ ⌡ ÷ ≈ ° ∙ · √ ⁿ ² ³ ¯

and many other legacy computer platforms.

Missing characters ⭢⭠⭡⭣␛🢰🕒🔔␌␍🯰🯱🯲🯳🯴🯵🯶🯷🯸🯹␛

will be included in the final CFt 5.0 release, as well as other characters.