A proof of concept for adding custom tech, civic, unique civic, & ideology icons.
For techs/civics/unique civics/ideologies all that needs to be done is to import the properly named image once as a .png for the tech/civic trees and once more with no extension for the Civilopedia entry.
Source icon should be a 256x256 pixel .png with a ~234x~234 centered circle as the icon.
Export once as a 256x256 .png with no file extension for the Civilopedia.
Export again as a 128x128 .png with the .png file extension for the trees/quick picker/completion popups. 256x256 works for these but is very pixelated from being downsampled by the game, so just use 128x128.
Default images can be found using the debug console: Library > UI Assets, filter by name, click red name to load, + then View.
For techs/civics/unique civics/ideologies all that needs to be done is to import the properly named image once as a .png for the tech/civic trees and once more with no extension for the Civilopedia entry.
Source icon should be a 256x256 pixel .png with a ~234x~234 centered circle as the icon.
Export once as a 256x256 .png with no file extension for the Civilopedia.
Export again as a 128x128 .png with the .png file extension for the trees/quick picker/completion popups. 256x256 works for these but is very pixelated from being downsampled by the game, so just use 128x128.
Default images can be found using the debug console: Library > UI Assets, filter by name, click red name to load, + then View.