如:我有以下dxf文件片段，什么地方提示了图元的颜色信息？以及对某图元颜色进行修改后dxf文件中的变化？
0
SECTION
2
HEADER
9
$ACADVER
1
AC1009
9
$INSBASE
10
0.0
20
0.0
30
0.0
9
$EXTMIN
10
16.844343
20
9.772935
30
0.0
9
$EXTMAX
10
59.874886
20
42.021214
30
0.0
9
$LIMMIN
10
0.0
20
0.0
9
$LIMMAX
10
12.0
20
9.0
9
$ORTHOMODE
70
1
9
$REGENMODE
70
1
9
$FILLMODE
70
1
9
$QTEXTMODE
70
0
9
$MIRRTEXT
70
0
9
$DRAGMODE
70
2
9
$LTSCALE
40
1.0
9
$OSMODE
70
3071
9
$ATTMODE
70
1
9
$TEXTSIZE
40
0.2
9
$TRACEWID
40
0.05
9
$TEXTSTYLE
7
STANDARD
9
$CLAYER
8
2
9
$CELTYPE
6
BYLAYER
9
$CECOLOR
62
256
9
$DIMSCALE
40
1.0
9
$DIMASZ
40
0.18
9
$DIMEXO
40
0.0625
9
$DIMDLI
40
0.38
9
$DIMRND
40
0.0
9
$DIMDLE
40
0.0
9
$DIMEXE
40
0.18
9
$DIMTP
40
0.0
9
$DIMTM
40
0.0
9
$DIMTXT
40
0.18
9
$DIMCEN
40
0.09
9
$DIMTSZ
40
0.0
9
$DIMTOL
70
0
9
$DIMLIM
70
0
9
$DIMTIH
70
1
9
$DIMTOH
70
1
9
$DIMSE1
70
0
9
$DIMSE2
70
0
9
$DIMTAD
70
0
9
$DIMZIN
70
0
9
$DIMBLK
1
9
$DIMASO
70
1