Stanleek,
Sorry that you are still seeing issues. I could not replicate the issue at my end.
Can you please share the MyEclipse Build id from Help > About section , along with the OS and version details ?
Also send us the steps you followed right from how you switched to the Black theme and back to the White theme.
While I try to replicate the issue at my end, please switch to a new workspace and check if the issue persists. If not, then please import your projects and continue working.