[keycloak-user] Keycloak won't allow me to select my theme from drop-down list

[Kamil Kapturkiewicz]

Hi,

I am trying to upgrade Keycloak step by step from very old 1.4.0 version 
to the latest one. However between version 1.8 and 1.9.8 default themes 
folder has been changed, and since that I can't see my theme on 
drop-down list in Realms Settings -> Themes -> Email / Login. What I can 
see in log is:

10:39:14,181 ERROR [org.keycloak.theme.ExtendingThemeManager] (default 
task-14) Failed to find LOGIN theme my_theme, using built-in themes
10:39:14,745 ERROR [org.keycloak.theme.ExtendingThemeManager] (default 
task-16) Failed to find LOGIN theme my_theme, using built-in themes

which means it can see it but won't allow me to use it for some reason. 
I also tried to clear cache, but with no luck. My theme.properties:

parent=base
import=common/keycloak

styles=css/login.css
meta=viewport==width=device-width,initial-scale=1

kcFormGroupClass=ck-form-group-class
kcFormOptionsWrapperClass=ck-form-options-wrapper-class

I went through Keycloak directory structure but found nothing related to 
themes.

brgds,