This commit converts all of the places using ColorScheme.Gray and ColorScheme.Grayf to Muted and Mutedf.
There is a little extra tidying up with local variable names or converting code to use Mutedf format.
This commit completely removes the iostreams.NewColorScheme() initializer function in favor of exporting the type fields for greater clarity in its use.
The result being code specifying only the fields that matter to test cases.
This commit adds the new environment variable to the `gh environment` help topic.
Additionally, there is a small fix for Go linter for an unused variable raised as a problem.
This commit implements the actual changes around configuration setting / environment variable logic for displaying labels using their RGB hex color code in terminals with truecolor support.
One of the subtler changes in this commit is renaming generic ColorScheme.HexToRGB logic to render truecolor to ColorScheme.Label as this feature was being used exclusively for labels. This is due to confusion about introducing the new `color_labels` config on top of generic coloring logic.
Allow the accessible markdownEditor prompt to be blank when the blank
comes from the result of an interactive session with an editor, even when
blankAllowed is false.
This behavior aligns the accessible prompter with the behavior of the
current standard prompter.
Without fixing all ColorScheme.Gray and ColorScheme.Grayf usage in this pull request, golangci-lint throws errors for using deprecated functions.
As that code should be replaced within github/cli#833, I'm removing the deprecation indicator for now to get this PR passing.
This commit covers testing around the new ColorScheme.Muted logic based on various situations to gain confidence we get the accessible colors expected when enabled.
Additionally, this commit includes a small change to the existing 8-bit color logic to standardize on the same reset sequence for testing purposes. Essentially, `ESC[m` and `ESC[0m` are equivalent but this inconsistency with our other libraries makes setting up tests a little extra confusing and difficult.
