If you are like me, (which I know you are), you like to mod video games! You can mod your Roblox textures to make your GUI just how you want it! I made mine gray and black.
***WARNING*** --- THIS CAN SCREW UP YOUR GAME IF YOU DON'T DO THIS RIGHT!MAKE A BACKUP COPY OF ALL OF YOU TEXTURES!!! --- ***WARNING***
Step 1: Find the File!
If you have Windows 7: Just push Start and then type "Roblox" in. When the Roblox.exe appears, right-click and select "Open File Location". Go to [Roblox File Location]>content>textures.
If you have other Windows OS's: Locate your Roblox.exe file and then go to [Roblox File Location]>content>textures.
Step 2: Edit the Files!
I used Gimp! Edit the pictures to how you want them! I made mine black and gray to make the UI seem less toy-ish. MAKE SURE THE BACKGROUNDS ARE TRANSPARENT!
Step 3: Launch Roblox!
Launch Roblox and it should have changed!
THANKS FOR READING