If you want to crop the raw file more you change that in camconst.json, but there is no need to crop more just because Lightroom does so.
Well I see a blue rectangle … the color might depend on the personal settings in the browser 
It’s been unlocked. This forum system unlocks more features as the user is more active. My replies were limited too.
I notice the same thing with the Sony A7RV on Raw Therapee 5.10
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I just returned to this after a LONG time.
Exiftool says for one of my old ARWs:
Default Crop Origin : 12 8
Default Crop Size : 7008 4672
Sony Crop Top Left : 12 8
Sony Crop Size : 7008 4672
Image Size : 7040x4688
I’ll try to poke at this later today or this weekend.
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In LIghtroom it says 7008x4672, so does Imaging Edge software. Which I don’t use to edit.
But I did not shoot in crop mode.
I see in Rawtherapee 5.10 the pixel stretch issue has been resolved. If I’m not mistaken it was in a Dev build I tried.
I’ve tested RT 5.10 seems to work well. quite fast.
Pics are shown as 7022x4680 but JPG out of camera are shown as 7008x4672
But I see also Irfan View shows ARW in 7008x4672 also JPG.
But according to the specs
Max resolution 7008 x 4672 is the max resolution. So this is what made me suspect Rawtherapee is using wrong resolution, or upscaling it. but the pixel stretch issue is gone. But not sure if pic is stretched or not. But at first glance it looks right.
But as long as the picture is not distorted it’s fine.
i suspect, this is kind of normal. For demosaicing (see RAW-Tab) usually there is set a border which will take away some pixles. After this you will get the resolution you found in the jpg.
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I looking into it in Darktable too
It actually downscaled the image before, now it matches the specs.
I see Darktable has a map with Open Street map. not even Lightroom has it. silly IMO. But would be sweet if this was added to Rawtherapee.
But a workaroudn is using Geosetter.Which I had to do to place stuff at correct spot as I couldn’t do it properly in Lightroom as it only offers satellite image.
But I will revisit Rawtherapee more. to see what has changed.
Most cameras record more pixels than advertised and throw out the edges in the jpeg to avoid problems such as demosaic artifacts along the image borders. RawTherapee’s demosaic algorithms work well along the edges, so it only removes a 4 pixel border (which is user-adjustable down to zero pixels). This is what Martin wrote about.
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I took a look, looks like you are right. I see Rawtherapee makes the image slightly wider, and adds more to the sides. I see Darktable, Lightroom Classic don’t do this. Nice Rawtherapee uses the Raw to its full potential.
In darktable, Raw black/white module>hamburger menu>passthrough.
Not sure what this has to do with what’s talked about here.
Rawtherapee seems to work well now. it reads wider image than Lightroom, Darktable.
only a few pixels, but nice it does it.
The module you mentioned just makes the image magenta.
Should give you all pixels also because it is linked to the hidden crop tool in that module.
You can enable it in the config file for darktable, but Passthrough is easiest if you just want to check.
Passthrough will also set black level to 0, so just double click on them to remove the colour cast but keep the uncropped image.
dadktable seems to crop 8 columns from the right side.
This is what I see:
I don’t have the sliders you have. And the picture gets ruined with magenta.
But I struggle to make things look normal in Darktable. I would have to do lots of work to even get to to be at a good starting point.
But Rawtherapee uses the Camera ST / standard embedded camera profile. Lightroom shows all six of them. Rawtherapee just uses the profile, no name shown can’t select others.
Darktable doesn’t use any embedded profile.s So image looks weird. Then there is the magenta infestation in various modules.
The pass-through settings are not meant to be used for image processing, rather as a debugging / image inspection tool.
If you really want to extract every last pixel, you can set the config property plugins/darkroom/rawprepare/allow_editing_crop to true in darktablerc, then you’ll be able to edit the crop borders in raw black/white point (which is just the user-exposed name of the module rawprepare). You don’t have to alter the black and white levels at all to do that.