versions before 3

for compatibility with V3 [...] 2_W7, STYLE3 [...] 4_GRADIENT2_LINEAR2, STYLE5_GRADIENT3

In this IEC 61131-3

: Normal 2: Active 3

: CODESYS Visualization 4.3

with V3.5 SP

:mm:ss tt displays 3

: Solid 2: Dash 3: Dots

_PRG.stImageID := 'ImagePool_A.Bild3