"terminal.ansiBlack" value ignored by integrated terminal

[ghost]

• VSCode Version: 1.29.1 (user setup), 1.30.0-insider (user setup)
• OS Version: 10.0.17763.134

Steps to Reproduce:

1. Set "terminal.ansiBlack" to "#ff00ff"
2. For comparison, set "terminal.ansiRed" to "#00ff00"
3. Open integrated terminal using WSL
4. Execute the LDP color test (bottom of the page) in the terminal
5. Verify that the background color for the 40m (ansiBlack) column is not set to #ff00ff
6. To compare, verify that the background color for the 40m (ansiRed) column is set to #00ff00

Does this issue occur when all extensions are disabled?: Yes

It may make the report a little more cluttered, but I included a screenshot of WSLtty on top which shows that the color test is able to render a background for the 40m column (it’s very dark and may appear as black – hex color value is #0c0c0c).

[ghost]

By the way, I understand that "editor.backgroundColor" often is set to the same value as "terminal.ansiBlack". This might not be an issue in most cases. It was however a bit surprising while editing the different colors why this particular didn’t work as expected.

[Tyriar]

This is likely related to winpty, tracking in #45693