Support dimmed text

[oir]

Hi, great project!

I noticed that dimmed text (ansi code 2) is not supported out of the box, would it be possible to support this?

If welcome, I can submit a PR for it. I have an implementation here that supports it by merely adding 0.5 opacity to the modified text (not familiar with Go at all so I mostly did pattern recognition 😅):
master...oir:ansisvg:dim#diff-5948cb3358520edabb7269cc310a861b2e2223a57e38e697aac25aeee34fd856

Example output here, see, e.g., the last row.

[wader]

Hey, yeap that seem resonable to support. But i do wonder how most terminal treats it, i think in some cases gets rendered as bold?

Maybe we could try echo -e 'hello \e[2mdim \e[1mintense\e[0m world' hello dim intense world some terminals? this is iTerm2:

Also do you know any popular programs that uses it that could be used as test cases?

No worries about being familiar with go, i try to keep the ansisvg code very basic and i i'm happy to help out if you create a PR.

@patrislav1 any thoughts? i have some vague memory that we did use css opacity for something at some point? 🤔

[oir]

One example (from python-land) that I know that uses it in the output is uv, e.g.:

❯ uv --color=always pip install requests &> tmp.txt
❯ cat -e tmp.txt
^[[2mUsing Python 3.11.10 environment at: env3.11^[[0m$
^[[2mAudited ^[[1m1 package^[[0m ^[[2min 2ms^[[0m^[[0m$

re: other terminals, I'm unsure. I have tested things only with iTerm2.

[wader]

@oir hey! added some tests to your changes and pushed a PR. Let's continue with details in #53

[wader]

Closed by #53