Code:
// cherry colors, 3 intensities
#define HI(v) ImVec4(0.502f, 0.075f, 0.256f, v)
#define MED(v) ImVec4(0.455f, 0.198f, 0.301f, v)
#define LOW(v) ImVec4(0.232f, 0.201f, 0.271f, v)
// backgrounds (@todo: complete with BG_MED, BG_LOW)
#define BG(v) ImVec4(0.200f, 0.220f, 0.270f, v)
// text
#define TEXT(v) ImVec4(0.860f, 0.930f, 0.890f, v)
auto &style = ImGui::GetStyle();
style.Colors[ImGuiCol_Text] = TEXT(0.78f);
style.Colors[ImGuiCol_TextDisabled] = TEXT(0.28f);
style.Colors[ImGuiCol_WindowBg] = ImVec4(0.13f, 0.14f, 0.17f, 1.00f);
style.Colors[ImGuiCol_ChildWindowBg] = BG( 0.58f);
style.Colors[ImGuiCol_PopupBg] = BG( 0.9f);
style.Colors[ImGuiCol_Border] = ImVec4(0.31f, 0.31f, 1.00f, 0.00f);
style.Colors[ImGuiCol_BorderShadow] = ImVec4(0.00f, 0.00f, 0.00f, 0.00f);
style.Colors[ImGuiCol_FrameBg] = BG( 1.00f);
style.Colors[ImGuiCol_FrameBgHovered] = MED( 0.78f);
style.Colors[ImGuiCol_FrameBgActive] = MED( 1.00f);
style.Colors[ImGuiCol_TitleBg] = LOW( 1.00f);
style.Colors[ImGuiCol_TitleBgActive] = HI( 1.00f);
style.Colors[ImGuiCol_TitleBgCollapsed] = BG( 0.75f);
style.Colors[ImGuiCol_MenuBarBg] = BG( 0.47f);
style.Colors[ImGuiCol_ScrollbarBg] = BG( 1.00f);
style.Colors[ImGuiCol_ScrollbarGrab] = ImVec4(0.09f, 0.15f, 0.16f, 1.00f);
style.Colors[ImGuiCol_ScrollbarGrabHovered] = MED( 0.78f);
style.Colors[ImGuiCol_ScrollbarGrabActive] = MED( 1.00f);
style.Colors[ImGuiCol_CheckMark] = ImVec4(0.71f, 0.22f, 0.27f, 1.00f);
style.Colors[ImGuiCol_SliderGrab] = ImVec4(0.47f, 0.77f, 0.83f, 0.14f);
style.Colors[ImGuiCol_SliderGrabActive] = ImVec4(0.71f, 0.22f, 0.27f, 1.00f);
style.Colors[ImGuiCol_Button] = ImVec4(0.47f, 0.77f, 0.83f, 0.14f);
style.Colors[ImGuiCol_ButtonHovered] = MED( 0.86f);
style.Colors[ImGuiCol_ButtonActive] = MED( 1.00f);
style.Colors[ImGuiCol_Header] = MED( 0.76f);
style.Colors[ImGuiCol_HeaderHovered] = MED( 0.86f);
style.Colors[ImGuiCol_HeaderActive] = HI( 1.00f);
style.Colors[ImGuiCol_Column] = ImVec4(0.14f, 0.16f, 0.19f, 1.00f);
style.Colors[ImGuiCol_ColumnHovered] = MED( 0.78f);
style.Colors[ImGuiCol_ColumnActive] = MED( 1.00f);
style.Colors[ImGuiCol_ResizeGrip] = ImVec4(0.47f, 0.77f, 0.83f, 0.04f);
style.Colors[ImGuiCol_ResizeGripHovered] = MED( 0.78f);
style.Colors[ImGuiCol_ResizeGripActive] = MED( 1.00f);
style.Colors[ImGuiCol_PlotLines] = TEXT(0.63f);
style.Colors[ImGuiCol_PlotLinesHovered] = MED( 1.00f);
style.Colors[ImGuiCol_PlotHistogram] = TEXT(0.63f);
style.Colors[ImGuiCol_PlotHistogramHovered] = MED( 1.00f);
style.Colors[ImGuiCol_TextSelectedBg] = MED( 0.43f);
// [...]
style.Colors[ImGuiCol_ModalWindowDarkening] = BG( 0.73f);
style.WindowPadding = ImVec2(6, 4);
style.WindowRounding = 0.0f;
style.FramePadding = ImVec2(5, 2);
style.FrameRounding = 3.0f;
style.ItemSpacing = ImVec2(7, 1);
style.ItemInnerSpacing = ImVec2(1, 1);
style.TouchExtraPadding = ImVec2(0, 0);
style.IndentSpacing = 6.0f;
style.ScrollbarSize = 12.0f;
style.ScrollbarRounding = 16.0f;
style.GrabMinSize = 20.0f;
style.GrabRounding = 2.0f;
style.WindowTitleAlign.x = 0.50f;
style.Colors[ImGuiCol_Border] = ImVec4(0.539f, 0.479f, 0.255f, 0.162f);
style.FrameBorderSize = 0.0f;
style.WindowBorderSize = 1.0f;