Thanks so much! I'm really glad you're enjoying the game :)
For the light issue, that usually happens on browsers with limited resources, like those on older devices or mobile. Do you happen to be playing on mobile or an older machine?
Unfortunately, since Serenitrove is built entirely with HTML and JavaScript (without a game engine), there are some technical limitations I can't fully optimize around when it comes to performance.
I really appreciate the suggestions! For the Flask description there was a player before this having this exact same issue, so I think you're right, it's still not clear enough. I've made a small tweak to the description before, but I'll definitely be updating it again to better explain that it's reusable.
As for the "Free dig!" message with the Titanium pickaxe/drill, I agree it does get a bit spammy. Will try removing it in the next patch and see how players feel about it. If no one misses it, it'll stay hidden.
For Omnishard, gold ores, titanium ores, and all the gemstones are considered valuables.
Thanks again for the feedbacks and suggestions. Do let me know if you come across any other issues!