Selection toggle dialog: Harmonize display of icons for "fixme" and "note"

[skyper]

What steps will reproduce the problem?

1. Have six nodes, three with FIXME=* and three with note=*. First node of each group has no additional tag, the second node of each group has additionally an tag without icon like amenity=social_facility and the last node of each group has a tag with icon like amenity=atm. See attached file​.
2. Select all nodes
3. Have a look at the icons in Selection toggle dialog

What is the expected result?

Somehow more harmonized icons like a big "N" or "F" for objects without any additional tag or tags without icons. Use only one color instead of black and red.

What happens instead?

A complete mixture:

• No big "F" for only FIXME=* present
• Really tiny, red "F" or "N" for tags without icons present

Please provide any additional information below. Attach a screenshot if possible.

Relative:URL: ^/trunk
Repository:UUID: 0c6e7542-c601-0410-84e7-c038aed88b3b
Last:Changed Date: 2020-02-02 18:47:18 +0100 (Sun, 02 Feb 2020)
Revision:15810
Build-Date:2020-02-03 02:30:51
URL:https://josm.openstreetmap.de/svn/trunk

[skyper]

selection list screenshot

[skyper]

mapview screenshot

[skyper]

example file

[Klumbumbus]

for fixme use fixme not FIXME as key. That fixes the missing big F as there is no preset for FIXME just for fixme. Related: #17809

[stoecker]

Align description and example.