How can I remove the words “Applications” (Application Menu tab) in the panel?
I’m assuming that you want Lumina to display labels (words in menus) in another language?
If so, goto Main Menu - Preferences. At the bottom of Preferences menu is a flag icon. There you can choose the language for display in Lumina.
No, I want the panel (next to the logo icon) to not have a title name, I just want a logo lumina
If you are using the “Application Menu” panel plugin, then the button text is hard-coded into the plugin (ensures GNOME-like behaviour).
If you want one that does not have any text, then replace that plugin with the “Start Menu” plugin. That one provides a more Windows-like appearance (no button text, has application searching, system preferences and more).