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1.Use F12 in your browser to find the background location directory for the image.
2.For this example, in the Windows installation environment, the image location is as follows:
The position of the Chinese word in the middle:C:\Program Files\iMC\client\web\apps\imc\resources\primefaces-imc-cool-blue\images\login_bg\login_logo_imc.png
Make sure to back up the image before replacing it. Otherwise, the original image will be lost.
The effect after replacement is shown in the figure: