Description of problem:
Tix is a megawidget extension for the Tcl/Tk graphical programming
language. 

The tcl and tk versions in use are 8.5.2 and tix presents some incompatibility
problems with those versions (some widgets just don't work).

Version-Release number of selected component (if applicable):
tix-8.4.2-X  with tcl 8.5.Y and tk 8.5.Y

How reproducible: very reproducible running this script:
wish << END
package require Tix
tixScrolledHList .e
exit
END

Actual results:
unknown color name "{#d9d9d9}"

Expected results:
none

Additional info:
This is because there has been a change of the way tcl converts from
sctring to/from lists. 
Tix 8.4.2 has some problems handling default widget colors that has been
fixed in Tix 8.4.3.

Please upgrade to Tix 8.4.3.