When using dark mode with a theme other than DarkModeDefault the background and font color of the theme are not applied to all styles.
This PR fix this bug by adding colorStyle="1" to ignore defined background colour in UDL, and use the default's background colour (theme's one) instead.
Fix#10593, close#10619
The XML file is updated from v2.x to v3.2.0
in the commit: Edditoria/markdown-plus-plus@c137918
Also rename it shorter and starting with "m".
So users can sort their UDL file-list in tidy.
Close#9058