You need to clone the same element 10...
DARK theme for Dolibarr 10.x, created...
Note: if you prefer, you can buy our DARK IMASDEWEB X package that contains several themes like this, one for each major version of Dolibarr. To which I will be adding new themes when new major versions of Dolibarr appear.
unzip theme_darkimasdeweb10-10.9.zipor with an external software.