DT indicator in CachePopup

[ztNFny]

A quick stab at adding the circle marker to popup to fix #15505

[eddiemuc]

I like it.
Maybe a tiny bit larger?

[ztNFny]

I like it.
Maybe a tiny bit larger?

Not easily done. The scaling is hardcoded in MapMarkerUtils.

I can do it afterwards if this PR is well received, otherwise too much work to invest.

[bekuno]

I think that is would be better between D and T.

[SammysHP]

Also D and T are kind of redundant with the labels. Not sure what lead to the removal of the stars, but I think the numbers plus a graphical representation like the stars or a bar graph would be better.

Of course this PR is still an improvement!

[moving-bits]

while I see the resemblance with the markers on the map, I think the visual identifier is too small here, so not that much gain over the pure textual representation. IMHO the proposal of @bekuno given in #15505 (comment) would be easier to grap quickly.