Disabled rules are not clearly visible in the GUI/UI
At the moment (CMK 2.4.X) if a rule is disabled, there's a light gray symbol at the beginning of the list. Within the normal rules the "Conditions" text is also grayed out but for example in the LDAP-Connection rule everything looks like the rule is active (no greyed out text here) just the gry symbol at the beginning of the line.
Before the GUI/UI rework in 2.4 disabled rules had a red "X" symbol together with the greyed out text. That was way more visible and harder to overlook.
If 2.4 is used with the light theme then there's even less contrast.
Screenshots:
light theme = CMK 2.3
dark theme= CMK 2.4