In LO 4.4, it's now possible to somehow set the transparency of frames >100% if you use the field in the sidebar. Once set to this invalid value, if you click off of the frame and then back on, transparency option will be greyed out in the sidebar. At this point it's easy enough to work around it by just pulling up the normal frame properties dialog.
Steps to reproduce:
1. Create a new document
2. Insert -> Frame
3. Pull up the "Properties" deck of the sidebar
4. Either type in or use the "increase" button to set the transparency higher than 100%
5. Click somewhere other than the frame to set the value
The box should have an upper constraint of 100%. It should not let a user set a higher value. If it somehow is set to be higher, it should fail gracefully and set the transparency down to 100% while not disabling any transparency options. It should behave the same way the transparency tab in the frame properties dialog behaves.
The transparency settings in the sidebar are disabled and impossible to correct without changing the frame property settings. The settings show a greyed out value of 50%, though the frame acts 100% transparent.
At least this value seems to go through a sanity check while loading the document and invalid values don't survive a file reload.
I tested this using LibreOffice 184.108.40.206 using 64bit Arch Linux.
Win 7 Pro 64-bit Version: 220.127.116.11.alpha0+
Build ID: 784d069cc1d9f1d6e6a4e543a278376ab483d1eb
TinderBox: Win-x86@62-TDF, Branch:MASTER, Time: 2015-01-25_23:07:36
Fixed by http://cgit.freedesktop.org/libreoffice/core/commit/?id=c1692f620610621a139e54fb1f9d11d4c177608d
Rishabh Kumar committed a patch related to this issue.
It has been pushed to "libreoffice-4-4":
tdf#88843 Set Maximum Value for Transparency spin button in area sidebar tab
It will be available in 4.4.5.
The patch should be included in the daily builds available at
http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More
information about daily builds can be found at:
Affected users are encouraged to test the fix and report feedback.