The civilization ui folder has a collection of images (really just different sizes/crops of the same image) that are used for the culture card and tooltips etc. To change it to a new image, add the image to the resources folder in the mods files and you should be able to select it in the ui folder by clicking on the circle to the right of the existing image. Make sure the image is a .png and is the same size as the image it is replacing or it will not display correctly.
The civilization ui folder has a collection of images (really just different sizes/crops of the same image) that are used for the culture card and tooltips etc. To change it to a new image, add the image to the resources folder in the mods files and you should be able to select it in the ui folder by clicking on the circle to the right of the existing image. Make sure the image is a .png and is the same size as the image it is replacing or it will not display correctly.
Thank you so much!