void RenderWindowBackground(int x, int y, int size_x, int size_y, int alpha)
    {
        D3DCOLOR first_color = D3DCOLOR_ARGB(ini.color.bgnd_first.alpha, ini.color.bgnd_first.red, ini.color.bgnd_first.green, ini.color.bgnd_first.blue);
        D3DCOLOR second_color = D3DCOLOR_ARGB(ini.color.bgnd_second.alpha, ini.color.bgnd_second.red, ini.color.bgnd_second.green, ini.color.bgnd_second.blue);
        if (alpha) {
            first_color = D3DCOLOR_ARGB(alpha, ini.color.bgnd_first.red, ini.color.bgnd_first.green, ini.color.bgnd_first.blue);
            second_color = D3DCOLOR_ARGB(alpha, ini.color.bgnd_second.red, ini.color.bgnd_second.green, ini.color.bgnd_second.blue);
        }
        pD3DHook->pRender->D3DGradient(x, y, size_x, size_y, first_color, second_color);
    }

ImGui::RenderWindowBackground(ImGui::GetWindowPos().x, ImGui::GetWindowPos().y, ImGui::GetWindowSize().x, ImGui::GetWindowSize().y);