Introduced by Swingx-1513 (support fully transparent renderer)
reported by wzberger:
the regression is to core behaviour, only worse: in core, the checkbox renderer has no striping background, but the selection background is showing. In SwingX 1.6.5 not even the selection is showing.
Reverting to 1.6.4 JRendererCheckbox as an emergency measure (needs a new tackle of 1513 some time in future)
Note - to myself - that default (nimbus) striping has changed from jdk6 -> jdk7
fixing this by reverting the fix of 1513 requires to tackle the 1513 differently
Fixed by explicitly setting opacity to true.
Deciding about a better overall handling (like allowing the ui to apply its painter) is a different issue and will be tackled in a normal release(see the forum thread for details)
As the fix to 1513 was not reverted, that can be closed again as well.