HOW TO: Make course line easier to see

Wow! This is great!!! Thanks a lot!
I managed to change the route to Lime green #FFADFF2F

Only my line has black borders and your screenshot shows a solid purple line. 
Can you tell me how I can change the colour of the border as well?  

Mischa said:

Can you tell me how I can change the colour of the border as well?

<style field="MPM_ACTV_CRS_CLR">
            <color>
                <primary day="#ffff00ff" night="#ffff00ff"/>
                <secondary day="#ffc800c8" night="#ffc800c8"/>
            </color>
        </style>

The "primary" attribute is the "route" color and the "secondary": attribute is the "border" color. I found best results is if you make the boarder a slightly darker shade of the route color as this delineates curves in the road better (look at the U-Turn under the "Lo" in Longny) although best visibility is where the colors are the same?

Route/Boarder Colors as above            Route/Boarder Colors both "#ffff00ff"

so i tried and couldn't get anything to work like u said - used notepad copied to a new file and pasted the above at the end.....i'm probably not doing it right. I can't see any difference ? Can you please provide an idiot's guide (becasue that's what i am). 

I want the lime green color so bad !!!! - in the classic mode i'm getting dark brown for my main roads and the dark magenta for the route - so difficult to differentiate - i'll say impossible when riding.

Big Lampar said:

and pasted the above at the end...

"at the end" would likely not work as it would not be correct XML, I will try to get time to write some instructions, (and I want to go for a long ride), Garmin not helping as it won't let me attach a file just now.

Mischa might be able to provide you with the compete file for green

PS your file could look like this, copy, save (new name), edit the hex color codes, put it in the MAPThemes and select

<?xml version="1.0" encoding="UTF-8"?>
<garmin_map_theme>
    <metadata>
        <title>CLASSIC PINK RTE</title>
        <description>Classic with PINK Route Line and HC Blue Cursor </description>
        <category>0</category>
    </metadata>
    <stylelist>
        <style field="MPM_ACTV_CRS_CLR">
            <color>
                <primary day="#ffff00ff"
                         night="#ffff00ff"/>
                <secondary day="#ffff00ff"
                           night="#ffff00ff"/>
            </color>
        </style>
    </stylelist>
</garmin_map_theme>

Firstly, placing the additional style field at the end of the file won’t work. It needs to be in between the <stylelist> and </stylelist> markers, in the same manner as other style fields.

Secondly, it appears that Classic.kmtf is a protected system file and gets recreated on startup, so any changes need to be saved with a new filename such as Classic2.kmtf or whatever. Then select that map theme in your activity profile.

Notepad isn’t the best tool for the job. Notepad++, with the XML Tools plugin and pretty print enabled is a lot better.

It didn't work for me - used Notepad++, got the XML TOols plugin - copied and pasted the lines,  - modified the HTML color codes - and still get the magenta route color when i load the route. i'm probably missing something ?

I did have it working with custom colours, but it seems to have reverted back to the standard ones, so I'm back to square 1 too

I tried tweaking the colours in my modified file copy, which probably caused it. I've just done similar edits to the High Contrast theme, which already has the MPM_ACTV_CRS_CLR style field and it now works again.