Outliner Row Colors Based on Collection Color Tags

🤔🤔🤔🤔🤔 Yeah, sounds useful! But maybe not everything should inherit its 'Parent' Collection Color; for example:

SHOULD:

• Object title Text;
• Icon Buttons at the extreme right side

SHOULD NOT:

• Object Data(-block) Icons (next to the Object title Text)
• Object Data(-block) Icons (below hierarchy of its Object)

Note: those Icons, are Colorful by default, and can be relevant for rapid identification of different types of Object Data(-block); I think it would only make sense, at most, a Color 'Multiplier' on them... but not a Color 'Override'.

UNSURE:

• Object Icon;

Note: I think it's uncertain, because the original Object Icons, they do not currently hold the same White Color of the default Collection Color, it would be inconsistent (unless that Object Icon default Color also changed to match the Color of the default Collection Color; or if, again, there might be some sort of 'Multiply' Color effect.

• UI elements on the left side, notably the vertical bar and the Hierarchy Downarrow Button (when Colored, they all look a bit too overwhelming; same for the Icon Buttons on the right side, but those are more forgiving because they help figuring out an imaginary 'box' of what a Collection contains, from where to where)

Note: Also, it may be that the Object title Text Color itself, with the adaptive Color to the one of its Collection, might already be sufficient for fast association [i.e., to have a clue about the Collection of that Object], thus not requiring so many other elements close to the Object title Text, to be Colored altogether.

I believe your proposal needs to be designed further, with more discussion; but it's a relevant idea. Maybe a few more comparative mockups if possible? Or just leave that to the Blender team?

PS: In case of Feature Request Editing, just beware that, it used to be that, sometimes the content goes to the void (loses everything! better backup if doing so).