This is a list of idea that came to me that would be pleasant changes to the GUI (in my opinion)
TLDR: There are 5 suggestions in this post
1. Logo on pause menu + quicksave
2. Unique turret indicators
3. Save game dialog box tweaks + overwrite confirmation
4. Direction of belt ghost.
5. Sidebar Info simple/detail view
changing the pause menu from GAME to the Factorio logo
in addition a "quick save" button to save the game. I tend to save often and keep my auto save lower in case something catastrophic happens.

Chaging the color of different Turrets to show what kind of turret/ranges.
Flamethrower turrets do not have to have the flair since im sure the range indicator is drawn mathmatically.

Example "in game" :

A belt ghost direction indicator very useful for building very zoomed especially at night

Changes to the "save game" dialog box:
1. Add the name of the currently open world
2. Change "Map name:" to "Map type:" since my save is definitely not called freeplay
3. When attempting to save over a different save give a confirmation notice.

Condencing the sidebar to only show relevant info

but also expands to give details.
