Thumbnails not working correctly in RH2022

Question

I'm trying to insert thumbnails into a RoboHelp project and not having much luck.

I inserted a graphic into a project page and clicked on the image. I selected Use Thumbnail in Content Properties and set the dimensions to Height 94 and width 150. The preview shows no different than in Author mode.

I selected Show Thumbnail for Images in the Output tab and Create Thumbnails for Images.

When I generate the output, it looks like this:

When I click on the thumbnail, the image looks nothing like the original (the original is dark-themed):

Any ideas? My goal is a thumbnail that looks like the original but smaller and, when clicked on, expands to a larger size.

kenl92739188 · Accepted Answer

I figured out the issue. First, I switched to "Style Existing Images as Thumbnails" in the output layout. The problem with the images was that I had transparent backgrounds set. When RH generates the output, the box that pops up with the full-size image has a white background, so the transparent image uses a white background. Problem solved. Thank you, Peter and Amebr, for your suggestions!

Amebr · Answer

I assume it's the calendar part of the image you're referring to, and the date picker bit is fine. There is nothing in the generation process that I'm aware of that would change the colour of half an image, but I suppose there could be a bug.

But let's check if it's something to do with the image first..

Create a new temporary project and pick a skin that is light coloured - I think Orange should be if you are using Frameless, or Azure Blue if you're using responsive.

Create a topic and insert the image. Does the whole image remain black or does the calendar part change to white?

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