ide: fix palette handling and disable custom font.

There are issues with the custom font because of this DearImGui issue:
ocornut/imgui#2127 and unfortunately the
proposed mitigation will not work out of the box, because we do not
provide all the required characters in our font.

The best solution would be to add our font characters to the already
existing font atlas.

Author: samhocevar

lol

@@ -20,6 +20,8 @@
 #include "ide/ide.h"
 #include "3rdparty/portable-file-dialogs/portable-file-dialogs.h"
 
+#define CUSTOM_FONT 0
+
 namespace z8
 {
 
@@ -37,16 +39,16 @@ ide::ide(player *player)
     style.WindowRounding = style.ChildRounding = style.FrameRounding = style.ScrollbarRounding = style.TabRounding = 0.0f;
 
     // Useless
-    style.Colors[ImGuiCol_ChildBg] = (lol::vec4)z8::palette::get(5) / 255.f;
+    style.Colors[ImGuiCol_ChildBg] = z8::palette::get(5);
 
-    style.Colors[ImGuiCol_Tab]          = (lol::vec4)z8::palette::get(0) / 255.f;
-    style.Colors[ImGuiCol_TabHovered]   = (lol::vec4)z8::palette::get(8) / 255.f;
-    style.Colors[ImGuiCol_TabActive]    = (lol::vec4)z8::palette::get(8) / 255.f;
-    style.Colors[ImGuiCol_TabUnfocused] = (lol::vec4)z8::palette::get(0) / 255.f;
-    style.Colors[ImGuiCol_TabUnfocusedActive] = (lol::vec4)z8::palette::get(0) / 255.f;
+    style.Colors[ImGuiCol_Tab]          = z8::palette::get(0);
+    style.Colors[ImGuiCol_TabHovered]   = z8::palette::get(8);
+    style.Colors[ImGuiCol_TabActive]    = z8::palette::get(8);
+    style.Colors[ImGuiCol_TabUnfocused] = z8::palette::get(0);
+    style.Colors[ImGuiCol_TabUnfocusedActive] = z8::palette::get(0);
 
-    style.Colors[ImGuiCol_TitleBg]          = (lol::vec4)z8::palette::get(5) / 255.f;
-    style.Colors[ImGuiCol_TitleBgActive]    = (lol::vec4)z8::palette::get(5) / 255.f;
+    style.Colors[ImGuiCol_TitleBg]       = z8::palette::get(5);
+    style.Colors[ImGuiCol_TitleBgActive] = z8::palette::get(5);
 
     m_player = player;
 
@@ -63,6 +65,7 @@ ide::~ide()
 void ide::tick_game(float seconds)
 {
     WorldEntity::tick_game(seconds);
+#if CUSTOM_FONT
     if (!m_font)
     {
         auto atlas = IM_NEW(ImFontAtlas)();
@@ -112,11 +115,12 @@ void ide::tick_game(float seconds)
         m_font->ContainerAtlas->TexID = m_player->get_font_texture();
 
     ImGui::PushFont(m_font);
+#endif
 
     render_dock();
 //    ImGui::ShowDemoWindow();
 
-    ImGui::PushStyleColor(ImGuiCol_ChildBg, (lol::vec4)z8::palette::get(5) / 255.f);
+    ImGui::PushStyleColor(ImGuiCol_ChildBg, z8::palette::get(5));
     m_editor.render();
     ImGui::PopStyleColor(1);
 
@@ -127,8 +131,8 @@ void ide::tick_game(float seconds)
             if (i % 4 > 0)
                 ImGui::SameLine();
             ImGui::PushID(i);
-            ImGui::PushStyleColor(ImGuiCol_Button, (lol::vec4)z8::palette::get(i) / 255.f);
-            ImGui::PushStyleColor(ImGuiCol_Text, (lol::vec4)z8::palette::get(i < 6 ? 7 : 0) / 255.f);
+            ImGui::PushStyleColor(ImGuiCol_Button, z8::palette::get(i));
+            ImGui::PushStyleColor(ImGuiCol_Text, z8::palette::get(i < 6 ? 7 : 0));
             ImGui::Button(lol::format("%2d", i).c_str());
             ImGui::PopStyleColor(2);
             ImGui::PopID();
@@ -145,8 +149,8 @@ void ide::tick_game(float seconds)
 
     ImGui::Begin("mUSIC", nullptr);
     {
-        ImGui::TextColored((lol::vec4)z8::palette::get(10) / 255.f, "stuff");
-        ImGui::TextColored((lol::vec4)z8::palette::get(5) / 255.f, "more stuff\nlol!!!");
+        ImGui::TextColored(z8::palette::get(10), "stuff");
+        ImGui::TextColored(z8::palette::get(5), "more stuff\nlol!!!");
     }
     ImGui::End();
 
@@ -164,7 +168,9 @@ void ide::tick_game(float seconds)
         m_rom_edit.DrawContents(m_player->get_rom(), 0x5e00);
     ImGui::End();
 
+#if CUSTOM_FONT
     ImGui::PopFont();
+#endif
 }
 
 void ide::render_dock()