Modify colors, fonts etc?

[TheChosenPrometheanKing]

Hey,

It would be nice to have some more control over the colors and fonts used in the converted output.
Could you add flags to allow the user to set e.g. the color of the background, the lines, the dots in the middle and so fourth?
Also it might be pretty handy to specifiy a font etc.

[azu]

Currently, can not modify.

@mdline/mdline-formatter-html generate html.
I plan to add an option like --formatter pkg-name for customizing formatter.

mdline/packages/mdline/src/cli.ts

Lines 34 to 37 in b0cff7a

	// TODO: parser and formatter will be plugabble
	const output = await processText(inputText, {
	parser,
	formatter