I included in my last message (at bottom) a link to my version with the text to show how that space can be used.
The bottom few pixels are compressed, but I like that effect to keep as much height as I can.
Fair enough. If you prefer to have text on your icons, then of course that's up to you. The fact that the panel is entirely customisable means that, ultimately, users can have whatever combination of graphics they wish to have for it.
There does still need to be a default panel though, and
the icon as I designed it is tailored to fit with the regular no-text SuperLemmini panel buttons; I still think mine is more suitable for that purpose.
Both the V-Lock and Restart buttons could do with some refinement though; I'll have another look at them and send some designs to Tsyu before the next release of SL. If you'd like to also have a look at them as well, I'd be happy to pass them on to you to get your input and feedback.