ENH: update linux applciation icon with 48x48 size, less pixelated
ENH: update linux applciation icon with 48x48 size, less pixelated

orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB,orfeotoolbox/OTB