Thanks for helping out and reporting those issues! I've pushed several fixes based on your feedback:
- Connection issues fixed — itch.io origins are now whitelisted for WebSocket connections, so you should stay connected
- ESC key — no longer exits fullscreen when closing in-game panels
- Tile seam artifacts — those horizontal dashed lines should be gone (fixed the default zoom)
- Panel repositioning — panels should no longer drift off-screen when resizing or toggling fullscreen
- Black bars — the game now properly fills the screen when going fullscreen
I also noticed itch.io was serving an outdated build — I've switched it to embed my live site directly, so it'll always be up to date from now on.
If you could give it another try and let me know how it looks, that'd be great. Make sure to do a hard refresh (Ctrl+Shift+R) to clear any cached files.