Blame Manuals/Repository/repository-html/repository_36.html

4c79b5
4c79b5
<html>
ccb7a3
4c79b5
4c79b5
Permission is granted to copy, distribute and/or modify this document
4c79b5
under the terms of the GNU Free Documentation License, Version 1.2 or
4c79b5
any later version published by the Free Software Foundation; with no
4c79b5
Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A
4c79b5
copy of the license is included in the section entitled GNU Free
4c79b5
Documentation License.  
4c79b5
-->
bf28e1
4c79b5
4c79b5
Written by: Lionel Cons <Lionel.Cons@cern.ch> (original author)
4c79b5
            Karl Berry  <karl@freefriends.org>
4c79b5
            Olaf Bachmann <obachman@mathematik.uni-kl.de>
4c79b5
            and many others.
4c79b5
Maintained by: Many creative people <dev@texi2html.cvshome.org>
4c79b5
Send bugs and suggestions to <users@texi2html.cvshome.org>
4c79b5
4c79b5
-->
4c79b5
<head>
7e35dc
<title>CentOS Artwork Repository: 3.33 trunk/Identity/Themes/Motifs/TreeFlower/Backgrounds</title>
4c79b5
7e35dc
<meta name="description" content="CentOS Artwork Repository: 3.33 trunk/Identity/Themes/Motifs/TreeFlower/Backgrounds">
7e35dc
<meta name="keywords" content="CentOS Artwork Repository: 3.33 trunk/Identity/Themes/Motifs/TreeFlower/Backgrounds">
4c79b5
<meta name="resource-type" content="document">
4c79b5
<meta name="distribution" content="global">
4c79b5
<meta name="Generator" content="texi2html 1.76">
4c79b5
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
4c79b5
<style type="text/css">
4c79b5
1e9202
@import "/home/centos/artwork/trunk/Identity/Models/Css/Texi2html/common.css";
4c79b5
4c79b5
a.summary-letter {text-decoration: none}
4c79b5
pre.display {font-family: serif}
4c79b5
pre.format {font-family: serif}
4c79b5
pre.menu-comment {font-family: serif}
4c79b5
pre.menu-preformatted {font-family: serif}
4c79b5
pre.smalldisplay {font-family: serif; font-size: smaller}
4c79b5
pre.smallexample {font-size: smaller}
4c79b5
pre.smallformat {font-family: serif; font-size: smaller}
4c79b5
pre.smalllisp {font-size: smaller}
4c79b5
span.sansserif {font-family:sans-serif; font-weight:normal;}
4c79b5
ul.toc {list-style: none}
4c79b5
-->
4c79b5
</style>
4c79b5
4c79b5
4c79b5
</head>
4c79b5
4c79b5
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
4c79b5
4c79b5
af3979
[ < ]
af3979
[ > ]
4c79b5
   
4c79b5
[ << ]
4c79b5
[ Up ]
af3979
[ >> ]
4c79b5
   
4c79b5
   
4c79b5
   
4c79b5
   
4c79b5
[Top]
4c79b5
[Contents]
af3979
[Index]
4c79b5
[ ? ]
4c79b5
7e35dc
af3979
7e35dc

3.33 trunk/Identity/Themes/Motifs/TreeFlower/Backgrounds

2dc146
2dc146
af3979
2dc146

3.33.1 Goals

2dc146
7e35dc

This section exists to orgnize backgrounds of TreeFlower

7e35dc
artistic motif.
7e35dc

2dc146
af3979
2dc146

3.33.2 Description

2dc146
2dc146
af3979
7e35dc

3.33.2.1 Desktop background

7e35dc
7e35dc

Once you have defined the vectorial artistic motif design, use the

7e35dc
centos-art.sh script (as described in usage section below)
7e35dc
to produce the png version of it. With the png version of your
7e35dc
vectorial design do the following:
7e35dc

7e35dc

Open the png version with GIMP.

7e35dc

7e35dc

Save the png version as a project of GIMP inside

7e35dc
<tt>`trunk/Identity/Themes/Motifs/TreeFlower/Backgrounds/Xcf'</tt>
7e35dc
directory, using the same name of your vectorial design but with the
7e35dc
<samp>`.xcf'</samp> extension.  
7e35dc

7e35dc

Now use GIMP to improve your design. Here you may add one layer for

7e35dc
pattern, another for colors, and so on until you find yourself
7e35dc
confortable with your artwork. For example,  the following layer
7e35dc
distribution (from bottom to top) was used to build revision 285 of
7e35dc
file <tt>`1360x768.xcf'</tt> using TreeFlower artistic motif at
7e35dc
revision 241.
7e35dc

7e35dc
7e35dc
Layer 1: Background
7e35dc
7e35dc

The first thing we did with GIMP was to create a layer named

7e35dc
<samp>`Background'</samp> to store the artistic motif (File > Open as layer).
7e35dc
This layer is the lowest layer in the image.  Later, we started to
7e35dc
create layers one upon another to change the artistic motif visual
7e35dc
style.
7e35dc

7e35dc
7e35dc
Layer 2: Shadow#1
7e35dc
7e35dc

This layer is above <samp>`Background'</samp> and contains a linear gradient

7e35dc
from left (000000) to right (transparent) covering the whole image.
7e35dc
This layer masks the artistic motif to avoid the effect of linear
7e35dc
gradient. This layer is 100% of opacity.
7e35dc

7e35dc
7e35dc
Layer 3: Shadow#2
7e35dc
7e35dc

This layer is above <samp>`Shadow#1'</samp> and contains a linear gradient

7e35dc
from left (000000) to right (transparent) covering just the 70% of the
7e35dc
whole image aproximatly. This layer doesn't mask the artistic motif
7e35dc
which make the left part of it fall into the dark of linear gradient.
7e35dc
This layer is 100% of opacity.
7e35dc

7e35dc
7e35dc
Layer 4: Pattern (Paper)
7e35dc
7e35dc

This layer is above <samp>`Shadow#2'</samp> an contains the paper pattern

7e35dc
shipped with GIMP 2.2. This layer doesn't mask the artistic motif so
7e35dc
the pattern is applied over the whole image. This layer is set to 15%
7e35dc
of opacity.
7e35dc

7e35dc
7e35dc
Layer 5: Pattern (Stripes)
7e35dc
7e35dc

This layer is above <samp>`Pattern (Paper)'</samp> and contains the stripes

7e35dc
used over the artistic motif. This layer do masks the artistic motif
7e35dc
so the stripes are only applied to it. This layer is set to 10% of
7e35dc
opacity.
7e35dc

7e35dc
7e35dc
Layer 6: Shadow#3
7e35dc
7e35dc

This layer is above <samp>`Pattern (Stripes)'</samp> and contains a linear

7e35dc
gradient from right (6600ff) to left (transparent).  This layer masks
7e35dc
the artistic motif so the linear gradient doesn't affect it. This
7e35dc
layer is set to 15% of opacity.
7e35dc

7e35dc
7e35dc
Layer 7: Shadow#4
7e35dc
7e35dc

This layer is above <samp>`Shadow#3'</samp> and contains a

7e35dc
linear gradient from left (000000) to right (transparent). This layer
7e35dc
do masks the artistic motif so the linear gradient doesn't affect it.
7e35dc
This layer is set to 10% of opacity.
7e35dc

7e35dc
7e35dc
Layer 8: Color#1
7e35dc
7e35dc

This layer is above <samp>`Shadow#4'</samp> and is filled with orange (ffae00)

7e35dc
color over the whole image. This layer is set to 10% of opacity.
7e35dc

7e35dc
7e35dc
Layer 9: Color#2
7e35dc
7e35dc

This layer is above <samp>`Color#1'</samp> and is filled with

7e35dc
blue (010a88) color over the whole image. This layer is set to 10% of
7e35dc
opacity.
7e35dc

7e35dc
7e35dc
7e35dc
7e35dc
info

Note

There is no definite combination. To get the appropriate

7e35dc
visual design is a matter of constant testing and personal taste.
7e35dc

c2a1bc
7e35dc

Finally, use <samp>`Save as copy ...'</samp> option to export the final

7e35dc
design. To export the final design use the same name of your vectorial
7e35dc
design plus <samp>`-final.png'</samp> extension. 
7e35dc

7e35dc

You can repeat these steps to create images for other screen

7e35dc
resolutions.
7e35dc

c2a1bc
af3979
7e35dc

3.33.2.2 Anaconda Prompt (syslinux) background

7e35dc
7e35dc

When building syslinux backgrounds it is needed to take into account

7e35dc
that the final image is reduced to 16 colors. In desktop background
7e35dc
there is no color limitation but syslinux does have. The goal of this
7e35dc
section is achieving a final syslinux background as close as possible
7e35dc
to desktop backgrounds using 16 colors only.
7e35dc

7e35dc

Another point to consider is the forground and background definition

7e35dc
used by syslinux. The syslinux documentation says that the color set
7e35dc
in position 0 is the background and color set in position 7 is the
7e35dc
forground. The final palette of color used by our background will
7e35dc
match that specification. For great contrast we'll use black as
7e35dc
background and white as forground. At this poing we have black
7e35dc
(000000) and white (ffffff) colors in our syslinux palette, which left
7e35dc
us with 14 colors to play with. 
7e35dc

7e35dc

Let's begin with <tt>`Xcf/640x300.xcf'</tt> layer distribution from bottom

7e35dc
to top:
7e35dc

7e35dc
7e35dc
Layer 1: Background
7e35dc
7e35dc

This layer is the lowest layer in the image composition and contains

7e35dc
the artistic motif image rendered for the same resolution (i.e.,
7e35dc
<tt>`Img/Png/640x300.png'</tt>). This layer is set to 100% of opacity.
7e35dc

7e35dc
7e35dc
Layer 2: Pattern (Paper)
7e35dc
7e35dc

This layer is placed above <samp>`Background'</samp> layer and contains the

7e35dc
paper pattern shipped with GIMP 2.2. This layer doesn't mask the
7e35dc
artistic motif. This layer is set to 30% of opacity.
7e35dc

7e35dc
7e35dc
Layer 3: Pattern (Stripes)
7e35dc
7e35dc

This layer is placed above <samp>`Pattern (Paper)'</samp> layer and contains

7e35dc
the stripes pattern shipped with GIMP 2.2. This layer does mask the
7e35dc
artistic motif in order to apply the stripes over it only. The
7e35dc
background is not affected by the stripes pattern just the artistic
7e35dc
motif. This layer is set to 20% of opacity.
7e35dc

7e35dc
7e35dc
Layer 4: Shadow#1
7e35dc
7e35dc

This layer is placed above <samp>`Pattern (Stripes)'</samp> layer and fills

7e35dc
the entire layer area with violet (6600ff) color. This layer do mask
7e35dc
the artistic motif in order to applied the violet color to the
7e35dc
background area outside the artistic motif only. This layer is set to
7e35dc
15% of opacity.
7e35dc

7e35dc
7e35dc
Layer 5: Color#1
7e35dc
7e35dc

This layer is above <samp>`Shadow#1'</samp> and is filled with orange (ffae00)

7e35dc
color to cover the whole image. This layer is set to 10% of opacity.
7e35dc

7e35dc
7e35dc
Layer 6: Color#2
7e35dc
7e35dc

This layer is above <samp>`Color#1'</samp> and is filled with blue (010a88)

7e35dc
color to cover the whole image. This layer is set to 10% of opacity.
7e35dc

7e35dc
7e35dc
Layer 7: Shadow#2
7e35dc
7e35dc

This layer is above <samp>`Color#1'</samp> and contains a linear gradient from

7e35dc
left (000000) to right (transparent) covering 70% of the image
7e35dc
approximately. 
7e35dc

7e35dc
7e35dc
7e35dc
7e35dc

At this point we have the composition and should look like the desktop

7e35dc
backgrounds. Compared with desktop backgrounds there are some
7e35dc
differences in opacity. This is because in our testings the final
7e35dc
color information found with this composition produces an acceptable
7e35dc
16 color image. Of course this is something we haven't seen yet.
7e35dc

7e35dc

To define the color information of our current coposition, save the

7e35dc
syslinux background composition we've done using <samp>`File > Save as
7e35dc
Copy ...'</samp> option in the following location:
7e35dc

7e35dc
trunk/Identity/Themes/Motifs/TreeFlower/Backgrounds/Img/Png/640x300-final.png
7e35dc
7e35dc

Now, create the final png version of syslinux backgrounds using the

7e35dc
following command:
7e35dc

7e35dc
centos-art render --entry=trunk/Identity/Themes/Motifs/TreeFlower/Distro/Anaconda/Prompt
7e35dc
7e35dc

This command will create syslinux-splash final images for all major

7e35dc
releases of CentOS distribution the repository has been configured to.
7e35dc
The important files here are <tt>`syslinux-splash.png'</tt>, other
7e35dc
files may contain the wrong information because we haven't defined yet
7e35dc
the correct color information to use.
7e35dc

7e35dc

Open one <tt>`syslinux-splash.png'</tt> file with GIMP and use the

7e35dc
<samp>`Image > Mode > Indexed'</samp> to reduce image colors up to 16 colors,
7e35dc
using the <samp>`Generate optimum palette'</samp> feature of GIMP.  If the
7e35dc
image looks aceptable after reducing colors, use the <samp>`Palettes'</samp>
7e35dc
menu (Ctrl+P) of GIMP to import a new palette from file and name it
7e35dc
<samp>`CentOS-TreeFlower-Syslinux'</samp>. Once you've saved the palette, the
7e35dc
color information is stored at:
7e35dc

7e35dc
~/.gimp-2.2/palettes/CentOS-TreeFlower-Syslinux.gpl
7e35dc
7e35dc

You need to edit <tt>`CentOS-TreeFlower-Syslinux.gpl'</tt> file in order

7e35dc
to set the appropriate order of colors.  Remember black (000000) in
7e35dc
position 0, and white (ffffff) in position 7. Other positions are
7e35dc
irrelevant. When editing this file you may find that color reduction
7e35dc
did not set black and white colors to their respective values exactly.
7e35dc
Change that manually. For example, consider the following palette:
7e35dc

7e35dc
GIMP Palette
7e35dc
Name: CentOS-TreeFlower-Syslinux
7e35dc
Columns: 16
7e35dc
#
7e35dc
  0   0   0	Background (black)
7e35dc
 23  20  35	Untitled
7e35dc
 34  25  48	Untitled
7e35dc
 37  35  60	Untitled
7e35dc
 47  36  68	Untitled
7e35dc
 37  54  86	Untitled
7e35dc
 60  48  90	Untitled
7e35dc
255 255 255	Foreground (white)
7e35dc
 66  54  99	Untitled
7e35dc
 74  61  98	Untitled
7e35dc
 49  78 126	Untitled
7e35dc
 43  87 151	Untitled
7e35dc
 92  89  95	Untitled
7e35dc
 54 104 183	Untitled
7e35dc
158 153 156	Untitled
7e35dc
201 196 195	Untitled
7e35dc
7e35dc

Update the <samp>`Palettes'</samp> menu to get the new color positions from

7e35dc
the file you just edited and open the palette with double click. 
7e35dc

7e35dc

Update the <tt>`syslinux.gpl'</tt> file copying the following file:

7e35dc

7e35dc
~/.gimp-2.2/palettes/CentOS-TreeFlower-Syslinux.gpl
7e35dc
7e35dc

to

7e35dc

7e35dc
trunk/Identity/Themes/Motifs/TreeFlower/Colors/syslinux.gpl
7e35dc
7e35dc

With the <samp>`CentOS-TreeFlower-Syslinux'</samp> palette opened in the

7e35dc
<samp>`Palette Editor'</samp>, open (Ctrl+O) the following file:
7e35dc

7e35dc
trunk/Identity/Themes/Motifs/TreeFlower/Colors/syslinux.ppm
7e35dc
7e35dc

and replace its color information with that one in

7e35dc
<samp>`CentOS-TreeFlower-Syslinux'</samp> palette.  When you are replacing
7e35dc
color information inside <tt>`syslilnux.ppm'</tt>, remember to keep the
7e35dc
order of colors just as they are in the
7e35dc
<samp>`CentOS-TreeFlower-Palette'</samp> palette.  
7e35dc

7e35dc

The <tt>`syslinux.ppm'</tt> file is 16 pixels width and 1 pixel height, so

7e35dc
you probably need to zoom it a bit to set the color information in
7e35dc
their place when using the pen tool with the brush <samp>`Circle (01)
7e35dc
(1 x 1)'</samp>.
7e35dc

7e35dc

Once you've updated the <samp>`syslinux.ppm'</samp> file, it is time to update

7e35dc
the following file:
7e35dc

7e35dc
trunk/Identity/Themes/Motifs/TreeFlower/Colors/syslinux.hex
7e35dc
7e35dc

The <tt>`syslinux.hex'</tt> file contains the color information in

7e35dc
hexadecimal notation.  The color information in hexadecimal notation
7e35dc
is required by ppmtolss16 command.  The ppmtolss16
7e35dc
command produces the final LSS16 image format that is used by syslinux
7e35dc
program inside CentOS distribution.
7e35dc

7e35dc

The color information inside <tt>`syslinux.hex'</tt> must match the one in

7e35dc
<tt>`syslinux.ppm'</tt> and <tt>`syslinux.gpl'</tt>. For example, based on
7e35dc
<tt>`CentOS-TreeFlower-Syslinux'</tt> palette of colors above, consider
7e35dc
the following <tt>`syslinux.hex'</tt> file:
7e35dc

7e35dc
#000000=0
7e35dc
#171423=1
7e35dc
#221930=2
7e35dc
#25233c=3
7e35dc
#2f2444=4
7e35dc
#253656=5
7e35dc
#3c305a=6
7e35dc
#ffffff=7
7e35dc
#423663=8
7e35dc
#4a3d62=9
7e35dc
#314e7e=10
7e35dc
#2b5797=11
7e35dc
#5c595f=12
7e35dc
#3668b7=13
7e35dc
#9e999c=14
7e35dc
#c9c4c3=15
7e35dc
7e35dc
af3979
7e35dc

3.33.2.3 Grub background

7e35dc
7e35dc
af3979
7e35dc

3.33.3 Usage

7e35dc
7e35dc
    7e35dc
  • ...
  • 7e35dc
    7e35dc
    7e35dc
    af3979
    bc3531

    3.33.4 See also

    4c79b5
    4c79b5
    4c79b5
    4c79b5
    af3979
    [ < ]
    af3979
    [ > ]
    4c79b5
       
    4c79b5
    [ << ]
    af3979
    [ Up ]
    af3979
    [ >> ]
    4c79b5
    4c79b5

    4c79b5
     <font size="-1">
    bf28e1
      This document was generated on February, 27 2011 using texi2html 1.76.
    4c79b5
     </font>
    4c79b5
     
    4c79b5
    4c79b5

    4c79b5
    </body>
    4c79b5
    </html>