What's New:
Summary
* Arcadia: added "Line-based emulation" toggle.
* Interton: added "Settings|Colours|Artefacts?" toggle.
* Miscellaneous improvements and bug fixes.
Details
arcadia: improved overlay/instructions for combat.
arcadia: fixed incorrect overlapped sprite colours.
optimized cpu emulation speed slightly for pixel-based emulation modes.
arcadia: added "line-based emulation" toggle.
interton: adjusted timing for super-space game.
interton: added artefacting support (for super-space game).