message: Set atlas->TexUvScale in ImGuiFreeType::BuildFontAtlas
  Similar fix in imgui_club:
diff: @@ -244,7 +244,8 @@ bool ImGuiFreeType::BuildFontAtlas(ImFontAtlas* atlas, unsigned int extra_flags)
  atlas->TexID = NULL;
  atlas->TexWidth = atlas->TexHeight = 0;
  - atlas->TexUvWhitePixel = ImVec2(0, 0);
  + atlas->TexUvScale = ImVec2(0.0f, 0.0f);
  + atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
  atlas->ClearTexData();
  ImVector<FreeTypeFont> fonts;
  @@ -288,6 +289,7 @@ bool ImGuiFreeType::BuildFontAtlas(ImFontAtlas* atlas, unsigned int extra_flags)
  // Create texture
  atlas->TexHeight = ImUpperPowerOfTwo(atlas->TexHeight);
  + atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
  atlas->TexPixelsAlpha8 = (unsigned char*)ImGui::MemAlloc(atlas->TexWidth * atlas->TexHeight);
  memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
  