First, the disclaimer: This works with my TT 340XLS. I am pretty sure it will work for you but no guarantees!
I wanted to know if a larger icon would work with my custom pois on the TT. Common wisdom is the icon had to be 22x22 in bmp format. I am getting older and wanted to actually be able to see the icons on my TT. Turns out the TT will accept up to 42x42 bmp. It appears the reason that the icons were, ostensibly, limited to 22x22 was so that when you tapped "navigate to" then "poi" the icons bigger than 22x22 would crowd the text in the poi list and cover some of it up with the bmp pic.
My solution is to add "___" (three underscore lines) before the actual name of the custom poi and do the same for the icon you create. Thus, a poi named "abc.ov2" becomes "___abc.ov2" and the icon goes from "abc.bmp" to "___abc.bmp" (obvious, I hope, is that you don't use quotation marks). The unit itself does not show the underscores so on your screen "___abc" still looks like "abc".
The added benefit is that your custom pois, with the 3 pre-name underscores, now float to the top of the poi list and are easily found amongst the pre-installed categories. The new icons are 3.6x bigger as well.
Hope you find this useful!
Thanks for the tip Ted, I'll try it out on my GO930 and let you know how it works.
be curious to know if it works for you...will be trying it on my GF's 540XXL as soon as I can pry it away from her for a little while
works like a charm with the 540XXL as well.
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