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This is actually not what I meant with "Please test and give feedback.". I though more about testing the themes on your favorite maps and give feedback about the colors, symbols and so on.

Well, if the theme does not work at all in the application I was trying to test it (GPXSee) because it is not a valid Mapsforge theme, than you can not do much more other testing...

Posting long error messages for themes which are working perfectly fine does only confuse "normal" people. I rather would prefer if these error message posts would "disappear".

If you want such message posts to disappear, then simply fix your theme to be a valid Mapsforge render theme. Because an invalid theme may break in Locus at any time as the Mapsforge rendering engine evolves during time and it may stop accepting invalid render themes like other engines already do.

Could you please elaborate a bit more on the checks you did? I use "circle" and "radius" as described in the renderTheme reference.
What kind of checks did you perform? Did you check something just in the .xml file? On which machine?
For me, both themes run without problems.

What more info do you need?! I have simply checked your map theme for validity against the Mapsforge render theme XSD using xmllint (the tool does not matter, you can use any XML validator, but you have tho complete command in the original post) and your theme is not a valid Mapsforge render theme.

Please test and give feedback.

Does not work for me as it is not a valid Mapsforge render theme:

Code Select Expand

xmllint --schema renderTheme.xsd OUTDOOR.xml

OUTDOOR.xml:1546: Schemas validity error : Element '{http://mapsforge.org/renderTheme}lineSymbol';, attribute 'align-center': The attribute 'align-center' is not allowed.
OUTDOOR.xml:1547: Schemas validity error : Element '{http://mapsforge.org/renderTheme}lineSymbol';, attribute 'align-center': The attribute 'align-center' is not allowed.
OUTDOOR.xml:2003: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2003: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2004: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2004: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2007: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2007: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2269: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2269: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2270: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2270: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2271: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2271: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2275: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2275: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2284: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2284: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2287: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2287: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2291: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2291: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2292: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2292: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml:2295: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';, attribute 'r': The attribute 'r' is not allowed.
OUTDOOR.xml:2295: Schemas validity error : Element '{http://mapsforge.org/renderTheme}circle';: The attribute 'radius' is required but missing.
OUTDOOR.xml fails to validate

May I ask, how it would be possible to show hiking paths, signs and so on at this theme?

Since GPXSee 13.47 (and the corresponding theme version) there are "Outdoor" and "Winter" layers in addition to the basic layer in the render theme.

And, can it be used for OAM and Locus Maps?

The theme has support for OAM-specific features. For using it in Locus, the symbol paths have to be adjusted and maybe a few other things that may cause minor rendering issues due to GPXSee and Locus using different render engines. But in general it is a standard, valid, Mapsforge render theme.

https://github.com/tumic0/GPXSee/blob/master/data/style/style.xml

The GPXSee Mapsforge/OpenAndroMaps render-theme uses a very similar cartographic style to Mapy.cz. The render-theme is a standard Mapsforge rendertheme so you should be able to use it in Locus but as GPXSee uses a different render engine than Mapsforge(Locus), you may have to adjust it a litle bit for Locus.