This is your standard
BluRay Blu.?Ray|BDRip|BRip|BR.?Rip|BDMV|BD|BDR|BD25|BD50|BD5|BD9|3D.?BluRay|3DBD

but BluRay is not the correct spelling. Blu-ray is. if you didn't want to include the - for some reason, even Bluray would be closer that BluRay.

Thank you for the reply!

I just noticed that filebot was actually contributing to my problem. a correctly named file

Ford v Ferrari (2019) [Blu-ray 2160p x265 HDR10 MLPFBA-7.1 [eng]].mkv
would be renamed to an incorrectly spelled
Ford v Ferrari (2019) [BluRay 2160p x265 HDR10 MLPFBA-7.1 [eng]].mkv ...

I have not been consistent in my file naming in {source} and hope to use filebot to change everything to the correct spelling of Blu-ray.

I use this for format
{plex} [{source}-{vf} {vc} {hdr} {ac}-{channels} {audiolanguages}]

I would also like to apply the change without modifying the "modified ...

There is all that empty space in the middle between the two text boxes, yet the button I use every bit as much as the rename button, presets, gets a tiny little Icon. Why not move the presets and the fetch ICONS to BIG Icons like match/rename?

for those of us who use non-standard naming conventions ...

Yes I use significant display scaling, often 150-200%
PS I think you might have improved things since I left this, as looking at it compared to this shot, the icons appear bigger. Maybe MS changed something?

GUI objects seem OK, but the text is still TINY.

FileBot 4.8.1 (r5375)
JNA Native: 5.2.0
MediaInfo: 18.03
7-Zip-JBinding: 9.20
Chromaprint: 1.4.2
Extended Attributes: OK
Unicode Filesystem: OK
Script Bundle: 2018-03-16 (r516)
Groovy: 2.4.13
JRE: Java(TM) SE Runtime Environment 10
JVM: 64-bit Java ...