egg.sh plans to fix a simple yet overlooked aspect in roblox; styling isn't any fun. You may make a gui that looks good but it probably required digging through properties to do. Egg.sh fixes all that. With CSS-like syntax, you can style with true ease in roblox.
To get started, simply download the .rbxm in the build folder. You can also copy and paste the code from ./src/eggshell/Main.lua into a module script file. Documentation is planned.