here is my last version Im aware about the upgrade bug, still i think its nice visual indicator to have
---------------
lvl 1 has nothing (same as level 0)
lvl 2 is flashy red pennant - lvl 2 is a benchmark, and i think it should be easiest to distinguish.
lvl 3 star, lvl 4 crown - yellow
----------------
absence of flag for independents is a great idea!
And G you are master of negative balance.
Hey i didnt play even one game with new flags yet. :D - but looking at screens I kind of agree its too flashy.
--------------
i use the ilb maker in safe mode [ i set admin privialge etc.. no sure if this point matter at all]
select interesting picture: R-click > add image
click icon resize the image [before click Default Properties and set Scalling to 1]
Create Lib icon will become active
====================
edit:
hmm... I think city upgrade symbols spoil game visuals. They stole too much attention.
i think i will keep only the crown for city lvl 4. 0/1 lvl has nothing
lvl 2 - 1x yellow symbol
lvl 3 - 2x yellow symbol or 1x yellow symbol but bigger