I'm sorry to dirty the discussion and annoy you about such a stupid problem, but I've tried everything and I've always failed.. I'm probably retarded. . .
I have read and re-read your answers, I have made many attempts to change the color of the folders, I have even bothered Windows by downloading the theme file for testing:
extracting the theme with 7zip
by editing the only value of properties.xml that does not change
from like this:
to like this:
I recompressed the file with 7zip with .mit extension
I emailed it to myself, I installed the default MiX Aztec theme first, which was successfully imported and displayed,
then click on the new file mit MixWhite_MOD.mit downloaded and modified > Import ..........
and I still find myself with the same yellow instead of blue folders.
Please, you can also answer me in summary, but step-by-step what exactly do you do to change the color of the folder? Maybe also indicate the name of the theme you modify, so I'll start from that...