1.3 - UI - RIOT menu option enabled when addon is not installed

[user0]

XnView: MP 1.3.0 64bits (Sep 6 2022)
OS: Windows 64bit (21H1)

"RIOT" menu option enabled when addon is not installed / located in XnView's AddOn folder.

Effect:
UI only.

To reproduce:
1. download XnViewMP archive, extract and run program
2. goto Tools -> RIOT.. option enabled
3. press it - nothing happens

Expected behaviour:
RIOT menu option shall to be disabled (gray) if no RIOT AddOn in Addon folder.

Suggestion:
Maybe worth to show message that user has to install RIOT manually and link to it's website.

[xnview]

yes you need to install it, but the entry must be greyed if riot is not here

[user0]

Got it, thanks. Initial post updated.

[xnview]

you need to install from https://riot-optimizer.com/download/

[user0]

I understand and absolutely OK with that.

However this bugreport is about XnViewMP UI.
I do not have RIOT installed on my pc and, in my understanding, RIOT.. menu option shall be disabled (gray) for me.