Achieving period-correct graphics in personal computer emulators --- Part 1: The Amiga

UPDATE 2023-02-19: Add section explaining analog RGB, further elaborate my views on low-resolution “pixel art”, plus wording improvements and grammar fixes.
UPDATE 2022-11-20: Shader pack updated to v2, changed the instructions and screenshots accordingly, plus revised the whole article here and there a bit. Note that the names of the shader files have changed.
This is a significant update that incorporates Guest’s recent shader improvements, achieves better preservation of highlights, more contrast, sharpness & vividness, and subtler glow and halation.