Moricky,
I tested again.
Test conditions:
Game started, closed, and started again.
Showcase: Vehicles
All addons disabled
Colour settings:
Background: red 0%, green 0%, blue 0%, alpha 50%
Active Elements: red 100%, green 100%, blue 0%, alpha 100%
Warnings: red 100%, green 50%, blue 0%, alpha 100%
Errors: red 100%, green 0%, blue 0%, alpha 100%
Observations:
The "steal"-marker appears in yellow as expected. I added a new waypoint marker by clicking [L-SHIFT]+[LMB] in the map. This new marker appeared in white. Both markers are transparent and barely visible in the centre section of the screen. When I change direction so that the markers are at the edge of the screen they are clearly visible. I guess that the alpha value of 100 applies for the edge of the screen and in the centre it may be around 40.
I changed the alpha settings in the colour menue in order to get a better idea but this did not have any influence on the markers ingame. The alpha settings only seem to work in the little screen in the options menu, but not in the game.
The font makes it difficult to tell certain numbers apart. This has been reported elsewhere but I am repeating it here because it is even worse when the numbers are transparent.
Expectations:
I would prefer to have both markers in the chosen colour (in my case yellow). The markers should not be transparent in the centre of the screen. If it was a design decision to have it this way, please give the player control of the alpha level in all areas of the screen. I like the fact the carets for the official marker and the personal marker are different. So they cannot be confused even if they are in the same colour.
I hope this information is useful for you..