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https://issues.apache.org/jira/browse/GUACAMOLE-470?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16550070#comment-16550070
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Michael Jumper commented on GUACAMOLE-470:
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I'm also now seeing an issue with parsing of the color scheme. If I set
{{color-scheme}} to {{foreground:blue;background:yellow}} (which should be
valid syntax), I see the following error in the guacd logs:
{code:none}
guacd[20567]: WARNING: Invalid color value: "blue".
{code}
but "blue" is definitely valid:
https://github.com/apache/guacamole-server/blob/79ce5ad8b0fec4bf366f843acfaa42581d01084a/src/terminal/named-colors.c#L77
> Make individual terminal colors configurable through "color-scheme" parameter
> -----------------------------------------------------------------------------
>
> Key: GUACAMOLE-470
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-470
> Project: Guacamole
> Issue Type: Improvement
> Components: Documentation, SSH, Telnet, Terminal
> Reporter: Jim Chen
> Priority: Major
> Fix For: 1.0.0
>
>
> I'd be happy to work on this feature if the maintainers think it's a good
> idea.
> Currently, the "color-scheme" parameter in the configuration xml can only
> choose one of four color schemes. It would be nice if it can also configure
> individual colors, so that more customized color schemes can be chosen.
> I propose to make the "color-scheme" parameter a series of semicolon
> separated commands, e.g. "{{black-white; color2: rgb:cc/33/22; ...}}", where
> each command specifies a color-set or a single color. This new format would
> be backward-compatible with the previous format, because previous values like
> "{{black-white}}" would be interpreted as a single command.
> Possible color-set commands are same as before: "{{black-white}}",
> "{{gray-black}}", "{{green-black}}", and "{{white-black}}". These commands
> set the foreground-background colors to existing values.
> The single-color commands are "{{foreground: <color>}}", "{{background:
> <color>}}", and "{{color<n>: <color>}}", where {{<n>}} is a number from 0 to
> 255, and {{<color>}} is a color value in the format {{rgb:RR/GG/BB}}, which
> matches the format used by xterm. These commands set the specified color to
> new values.
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