<font face="Arial, Verdana">Thanks for the info @tgc.</font>
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<font face="Arial, Verdana">I managed to draft a script to generate theme '.otz' files from a base template file and a number of JPGs. It is stored in a public GIT repo at:</font>
<font face="Arial, Verdana">https://app.assembla.com/spaces/gp-open/git/source/master/openlp-theme-gen</font>
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<font face="Arial, Verdana">At time of this post, running the script without args gives the usage:</font>
usage: theme_gen.py [-h] [-b BORDER_COLOR]
theme_template_file img_file [img_file ...]
theme_gen.py: error: the following arguments are required: theme_template_file, img_file
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<font face="Arial, Verdana">There is also a 'resource' directory with 'otz' and 'jpg' files you can use to practice. EG:</font>
./theme_gen.sh resource/base.otz resource/*.jpg <br>
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<font face="Arial, Verdana">Anyone is welcome to use or copy it however it is provided as-is (without warranty).</font>
<font face="Arial, Verdana">There's no windows adaptor script yet so if someone wants to give me one, or has any suggestions please feel free to email me:</font>
<font face="Arial, Verdana">contact(a)freshcode(.)biz</font>
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<font face="Arial, Verdana">Finally, I took some free pictures from </font>https://unsplash.com/ last month to make backgrounds. So if anyone is interested there's some FHD 1920x1080 backgrounds at: https://goo.gl/Hw20v9
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<font face="Arial, Verdana">Pete</font>