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https://issues.apache.org/jira/browse/GUACAMOLE-280?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16018978#comment-16018978
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Michael Jumper commented on GUACAMOLE-280:
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The "faint" SGR flag is actually a "half bright" flag, defined as reducing the
intensity by half. Though it is reset when the intensity is reset (via SGR 21
or 22, for example), it is a separate flag maintained independently from the
bold flag. Both bold and half bright can be set at the same time, resulting in
essentially normal intensity.
> Add support for the "faint" SGR flag
> ------------------------------------
>
> Key: GUACAMOLE-280
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-280
> Project: Guacamole
> Issue Type: Improvement
> Components: SSH, Telnet, Terminal
> Reporter: Michael Jumper
> Assignee: Michael Jumper
> Priority: Minor
>
> Guacamole's terminal emulator currently supports 16 colors - 8 normal colors,
> plus 8 additional colors through setting the "high intensity" SGR flag.
> Beyond this, there is a "faint" SGR flag for lower intensity, which would add
> another 8 colors to this, but that flag is currently ignored by Guacamole.
> Support for the "faint" SGR flag should be added to bring color handling into
> parity with the Linux console and xterm.
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