Here's a wishlist for what characters I think would be nice to see in this font.
- Whitespace characters, especially \x{2007} and \x{2009}. These are easy to draw in a monospaced font, because they all look the same as an ordinary space.
- Full support for Romanian. This needs the \x{0219} and \x{021b} letters and their uppercase versions. Those are actually trivial to draw in this font, since they can look exactly the same as the \x{015F} and \x{0163} characters, which is how they were represented before they got split off in unicode. Note that your current glyphs for \x{00E7} and \x{0157} and \x{146} already show that you're using the same looks for the cedilla and comma below, which is entirely reasonable at this resolution.
- Ellipsis \x{2026}. Hard to fit in 8 pixels, but occurs very frequently in text, so support would be nice.
- Also perhaps vertical ellipsis \x{22EE} and middle dot horizontal ellipsis \x{22EF}.
- Certain frequent mathematical symbols, most of which shouldn't be very hard to draw, but a few might are:
- cap and cup operators \x{2229}, \x{222A},
- square root \x{221A}
- vertical bar and double vertical bar relations \x{2223}, \x{2225},
- angle brackets \x{27E8} \x{27E9},
- oplus and otimes operators \x{2295} \x{2297},
- top and bottom atoms \x{22A4}, \x{22A5},
- middle dot operator \x{22C5},
- mapsto arrow \x{21A6},
- prime \x{2032}, double and triple prime \x{2033} \x{2034},
- partial derivative \x{2202},
- element of \x{2208}, not element of \x{2209},
- squiggle and double squiggle relations \x{223C}, \x{2248},
- subset and superset relations \x{2282}, \x{2283}, \x{2286}, \x{2287},
- floor and ceiling brackets \x{2308} \x{2309}, \x{230A} \x{230B}.
- All characters in the cp437 encoding. This one isn't easy, since you seem to be missing a dozen still, including \x{0192} and \x{2642} and many of these are not easy to draw.
Here's a wishlist for what characters I think would be nice to see in this font.