Downloads: spiderbasic-dark-help.zip, purebasic-dark-help.zip

Extract the zip file(s) and copy the entire spiderbasic or purebasic folder to the help folder of the application. Those folders will be:

/Applications/SpiderBasic.app/Contents/Resources/help
/Applications/PureBasic.app/Contents/Resources/help

This will replace the help HTML files with these modified dark versions.