Changes
/* Hardware */
Most screen shots show borders around the screen, which is a feature of the VIC-II chip. By utilising interrupts to reset various hardware registers on precise timings it was possible to place graphics within the borders and thus utilise the full screen.
The PAL color palette of the C64 differs significantly from the NTSC one [https://x.com/jscastro76/status/1820876067441123706 Source1] [https://x.com/vmisev/status/1664621460642471936 Source2] [https://x.com/vmisev/status/1642238897135529984 Source3]. It is often described as "brownish". Thanks to Tramiel decision to save 1¢ and not to change couple of transistors for the PAL C64. [https://x.com/vmisev/status/1638903342574235649 Source].
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Note: the "ChristopherJam" or "AL82" palettes are truer than the default "Pepto" one in VICE. [https://x.com/hqqns/status/1642090487137067008 Source1] [https://x.com/Al82_Retro/status/1528896694490112000 Source2]. There is no real color palette anyway as, back in the day, people tweaked their color TV settings at will [https://x.com/level106/status/1493866907090362375 Source]. And CRTs render colors quite differently than LCD displays.
===Sound===
