I checked with "Ooo Dev 3.1.0 multilingual version English UI WIN XP: [OOo310m2
(Build 9385)]" and can confirm the reported effect

Works fine with "Ooo 3.0.1 (DE) Multilingual version GERMAN UI WIN XP:
[OOO300m15 (Build 9379)]"

There is a similar effect in  Issue 56520, but I doubt that there is a
connection between these issues.

@iha: pls have a look

@weiz, please have a look.

Created attachment 61674 [details]
example document

@iha, maybe the "CharUnderlineColor" property of chart is overridden by the same
property of text in the applications. And this is a global problem, please see
the example document.

@weiz, thanks for analyzing the problem!
@hdu, the font underline color is rendered correctly only in text edit mode. The
drawinglayer and also the metafile renderer do use a wrong color for underlining
of texts in OLE objects. Please look at the attached example document from weiz
and follow the instructions there.

The rTextlineColor argument in the TextDecoratedPortionPrimitive2D constructor requests the black 
underline color:

# p rTextlineColor 
$1 = (const BColor &) @0xbfffd2f0: {
  <B3DTuple> = {
    mfX = 1, 
    mfY = 0, 
    mfZ = 0
  }
in DEV300_m46:
#0  drawinglayer::primitive2d::TextDecoratedPortionPrimitive2D::TextDecoratedPortionPrimitive2D 
(this=0xfb5a964, rNewTransform=@0xbfffd358, rText=@0xbfffd644, aTextPosition=0, 
aTextLength=30, rDXArray=@0xbfffd33c, rFontAttributes=@0xbfffd318, rLocale=@0xbfffd324, 
rFontColor=@0xbfffd2d8, rOverlineColor=@0xbfffd2c0, rTextlineColor=@0xbfffd2f0, 
eFontOverline=FONT_UNDERLINE_NONE, eFontUnderline=FONT_UNDERLINE_DOUBLE, 
bUnderlineAbove=false, eFontStrikeout=FONT_STRIKEOUT_NONE, bWordLineMode=false, 
eFontEmphasisMark=FONT_EMPHASISMARK_NONE, bEmphasisMarkAbove=false, 
bEmphasisMarkBelow=false, eFontRelief=FONT_RELIEF_NONE, bShadow=false) at 
drawinglayer/source/primitive2d/textdecoratedprimitive2d.cxx:783
#1  (anonymous namespace)::impTextBreakupHandler::impCreateTextPortionPrimitive 
(this=0xbfffd8d8, rInfo=@0xbfffd3f0) at svx/source/svdraw/svdotextdecomposition.cxx:386
#2  (anonymous namespace)::impTextBreakupHandler::impHandleDrawPortionInfo (this=0xbfffd8d8, 
rInfo=@0xbfffd3f0) at svx/source/svdraw/svdotextdecomposition.cxx:529
#3  (anonymous namespace)::impTextBreakupHandler::decomposeBlockTextPrimitive (this=0xbfffd8d8, 
pInfo=0xbfffd3f0) at svx/source/svdraw/svdotextdecomposition.cxx:591
#4  Outliner::DrawingText (this=0x3d8a8a10, rStartPos=@0xbfffd610, rText=@0xbfffd644, 
nTextStart=0, nTextLen=30, pDXArray=0xfb54e90, rFont=@0xbfffd5cc, nPara=0, nIndex=0, 
nRightToLeft=0 '\0', pWrongSpellVector=0x0, pFieldData=0x0, bEndOfLine=1, bEndOfParagraph=1, 
bEndOfBullet=0, pLocale=0xbfffd5f4, rOverlineColor=@0xbfffd618, rTextLineColor=@0xbfffd640) at 
inc/tools/link.hxx:142
#5  ImpEditEngine::Paint (this=0x52b3000, pOutDev=0xbfffd6d8, aClipRec={nLeft = 0, nTop = 0, 
nRight = 2147483646, nBottom = 2147483646}, aStartPos={<Pair> = {nA = 0, nB = 0}, <No data 
fields>}, bStripOnly=1 '\001', nOrientation=0) at svx/source/editeng/impedit3.cxx:3303
#6  EditEngine::StripPortions (this=0x3d8b1ca0) at svx/source/editeng/editeng.cxx:1695
#7  Outliner::StripPortions (this=0x3d8a8a10) at svx/source/outliner/outliner.cxx:1768
#8  SdrTextObj::impDecomposeBlockTextPrimitive (this=0x3df337a0, rTarget=@0xbfffd9ec, 
rSdrBlockTextPrimitive=@0x6372d30, aViewInformation=@0xbfffde74) at 
/so/ws/DEV300/ooo/svx/source/svdraw/svdotextdecomposition.cxx:162
#9  drawinglayer::primitive2d::SdrBlockTextPrimitive2D::createLocalDecomposition (this=0x6372d30, 
aViewInformation=@0xbfffde74) at svx/source/sdr/primitive2d/sdrtextprimitive2d.cxx:250
#10 0x1878e600 in drawinglayer::primitive2d::BasePrimitive2D::get2DDecomposition 
(this=0x6372d30, rViewInformation=@0xbfffde74) at 
drawinglayer/source/primitive2d/baseprimitive2d.cxx:80

ah, the tuple elements are doubles, so BColor={1,0,0} means RED...

.

Fixed in CWS vcl101.

@wg: please review in CWS vcl101

*** Issue 101504 has been marked as a duplicate of this issue. ***

aditionally, copy/paste of selected text replaces specified colors for
over/underlining with text color.

Verified in CWS.

Target set for 3.1.1 showstopper.

prepare backporting to OOo3.11

reopen for backport

.

For target OOo3.11 the fix now is also in CWS ooo311gsl01

Created attachment 62191 [details]
minimal bugdoc with underline and overline

@wg: please also verify in CWS ooo311gsl01

Verified in CWS.

Tested in m52. I have written follow up i103692.