git ssb

Change colours

Express the colours using HSL and HSLA,
because it's easier to understand and manipulate.
Exclude the logo colours because they don't need manipulating,
and they just look nicer in hex.

Tint the background colour green, so it feels warmer.
Make the background slightly lighter,
mainly so its lightness value is a pleasingly round number.

Produce the dim colours using transparency.
They match the parent colour exactly,
and harmonise with the background colour.

The dim text colour is slightly higher contrast (using opacity);
the separator colour is now slightly lower contrast.

Other than the background colour, most colours look broadly the same.