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34 lines
1.8 KiB
Markdown
34 lines
1.8 KiB
Markdown
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---
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title: Lighten up whitespace characters
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language: en
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layout: default
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created: 2008-07-15 00:18:52 +0200
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updated: 2013-03-16 17:26:35 +0100
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toc: false
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tags:
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- know-how
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- software
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- ezpublish
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---
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If you enable the checkbox *Show whitespace characters* under General → Editors → Text Editors, the characters are a
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bit too offensive. Sadly, there's no option to change the transparency of them. The default (and fixed) value is
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`64h`/`FFh` = `100d`/`255d` (ca. 40% visible / 60% transparency). You can only change the value using a hex-editor:
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* open the file `org.eclipse.jface.text_3.3.1r331_v20070629.jar` in the plugins folder of Eclipse using an archiver
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(e.g. Total Commander)
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* unpack the contained file `WhitespaceCharacterPainter.class` out of `/org/eclipse/jface/text/`
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* open that file in a hex-editor (e.g. Hex-Workshop, XVI32)
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* jump to the location `0x1769` and find the following lines:
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001750: 0a 2a b4 01 1f b6 01 3c 36 0a 2a b4 01 1d 99 00
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001760: 21 2b b6 01 4e 36 0b 2b 10>64<b6 01 51 2a 2b 15
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001770: 09 15 0a b7 01 38 2b 15 0b b6 01 51 a7 00 0c 2a
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(The marked `64` is the value described above. `00h` = white/transparent, `FFh` = black.)
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<font color="#ffffff">00</font><font color="#eeeeee">11</font><font color="#dddddd">22</font><font color="#cccccc">33</font><font color="#bbbbbb">44</font><font color="#aaaaaa">55</font><font color="#999999">66</font><font color="#888888">77</font><font color="#777777">88</font><font color="#666666">99</font><font color="#555555">AA</font><font color="#444444">BB</font><font color="#333333">CC</font><font color="#222222">DD</font><font color="#111111">EE</font><font color="#000000">FF</font>
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`33h` would be 80% transparency and is a nice value.
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After saving your changes, put the file back into the .jar and run Eclipse.
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