Before freetype2 use to iterate through the font's glyphs diretly.

meson.build

@@ -10,12 +10,13 @@ ftxui_component = dependency('ftxui-component')
 sfml = dependency('sfml')
 lua = dependency('lua')
 sol2 = dependency('sol2')
+freetype2 = dependency('freetype2')
 
 dependencies = [
   catch2, fmt,
   ftxui_screen, ftxui_dom,
   ftxui_component, json,
-  sfml, lua, sol2
+  sfml, lua, sol2, freetype2
 ]
 
 runtests = executable('runtests', [

status.txt

@@ -3,6 +3,8 @@ TODAY'S GOAL:
 1. Why do Sliders only have to be kept around forever and can't go in containers like everything else?
 2. Why are sliders not selected when I click on them? Is it a hover?
 3. Why do fonts render blank? Also when I scroll they slowly disappear until there's a column.
+4. Use freetype to iterate chars.
+5. Why are all wchar converted chars in from_unicode 3 bytes not 2?
 
 * A designer tool to help find characters for foreground, background, and figure out their colors.
 

tools/designer.cpp

@@ -13,6 +13,8 @@
 #include <locale>
 #include <codecvt>
 #include <vector>
+#include <ft2build.h>
+#include FT_FREETYPE_H
 
 using namespace fmt;
 using namespace ftxui;
@@ -55,7 +57,7 @@ struct FontGrid {
     try {
       return $converter.to_bytes(input);
     } catch(...) {
-      return "?";
+      return $converter.to_bytes(L"?");
     }
   }