Fedora distro can improuve the LXDE environment.
Let's start this simple tips and tricks that change the size of the window.
You can see the window is blocked by the Task Bar.
You need to open this file named lxde-rc.xml:
[mythcat@desk ~]$ vim ~/.config/openbox/lxde-rc.xml
Then change these lines of source code save the file and reboot:
<!-- You can reserve a portion of your screen where windows will not cover when they are
maximized, or when they are initially placed.
Many programs reserve space automatically, but you can use this in other cases. -->
<margins>
<top>0</top>
<bottom>30</bottom>
<left>0</left>
<right>0</right>
</margins>
After reboot the result is more good: