A simple SVG helper for Stack Overflow that inlines SVGs into Razor views efficiently

Svg.cs

using System;
using System.IO;
using System.Web;
using System.Web.Hosting;

namespace StackOverflow.Helpers
{
    public static class Svg
    {
        // NOTE: To add a new SVG icon, copy paste the line below. Paste it after the other ones.
        // The variable's name needs to match the exact .svg name in Content/Img/svg-icons. 
        // 
        // TEMPLATE:
        // public static IHtmlString SvgName { get; } = GetImage(nameof(SvgName));

        public static IHtmlString Achievements { get; } = GetImage(nameof(Achievements));
        public static IHtmlString Help { get; } = GetImage(nameof(Help));
        public static IHtmlString Inbox { get; } = GetImage(nameof(Inbox));
        public static IHtmlString Moderator { get; } = GetImage(nameof(Moderator));
        public static IHtmlString ReviewQueue { get; } = GetImage(nameof(ReviewQueue));
        public static IHtmlString SalaryCalculatorJobsCTA { get; } = GetImage(nameof(SalaryCalculatorJobsCTA));
        public static IHtmlString SalaryCalculatorWorkHereCTA { get; } = GetImage(nameof(SalaryCalculatorWorkHereCTA));
        public static IHtmlString StackExchange { get; } = GetImage(nameof(StackExchange));


        private const int MaxReasonableSize = 4096;

        private static IHtmlString GetImage(string fileName)
        {
            // This needs to be accessed inline, on a request to work properly - so here we are. It's cheap for initial loads.
            var basePath = HostingEnvironment.MapPath(@"~/Content/Img/svg-icons/");
            
            try
            {
                var path = $"{basePath}/{fileName}.svg";
                var imageString = File.ReadAllText(path);
                
                // Okay so now we have the svg asset loaded into the string,
                // if we're on DEBUG let's do some sanity checking on the .svg itself.
                // This way we throw in dev.
#if DEBUG
                if (imageString.Length > MaxReasonableSize)
                {
                    throw new Exception($"{path} is larger than the maximum allowed SVG icon size: {MaxReasonableSize.Commify()} bytes.");
                }

                if (imageString.Contains("<!--"))
                {
                    throw new Exception($"{path} contains <!-- --> style comments. Please ensure this file is minified properly.");
                }
#endif

                return MvcHtmlString.Create(imageString);
            }
            catch (Exception ex)
            {
                // If the file wasn't able to be loaded at all, we should just throw.
                // This throw should never happen on prod since people should be checking after they add a new SVG
                // and the entry for it in this file, but you know, just in case.
#if DEBUG
                // A nice little error message for the person who's using this to see.
                throw new Exception($"Unable to open {fileName}.svg. Check that the file is in the correct path the name matches what's listed in Svg.cs", ex);
#else
                GlobalApplication.LogException(ex);
                return MvcHtmlString.Empty;
#endif
            }
        }
    }
}