[css-inline-3] [Meta] Feedback on text-edge and leading-trim #8479

We're filing a series of issues about the design feedback of leading-trim and text-edge. As far as we know, these properties are unimplemented in any browser, which means now is a good time to give feedback on their overall design. For each of the issues we're filing, we don't have a fully-formed proposal that would solve the problem, but we do have some avenues of potential mitigation in mind, and we're offering these ideas as a starting point for further discussion.

Here are the issues we've filed:

• [css-inline-3] leading-trim only has an effect by itself in corner cases #8473
• [css-inline-3] It’s super easy for overflow collisions to occur when using leading-trim #8474
• [css-inline-3] text-edge only has an effect by itself in corner cases #8475
• [css-inline-3] The interaction of text-box-edge with line-height is not predictable by authors #8476
• [css-inline-3] text-edge and line-height have the same conceptual job #8477
• [css-inline-3] text-edge doesn’t allow for fine-tunability (like how line-height does) #8478
• [css-inline-3] It's impossible to use text-box-trim without changing line progression within the paragraph #8829