For text, a fill is applied to the area inside the shape of an individual character; a stroke is applied to the outline of the character. After Effects applies a stroke to a character by centering the stroke on the character’s path; half of the stroke appears on one side of the path, and the other half of the stroke appears on the other side of the path.
The Character panel lets you apply both color fill and color stroke to text, control the stroke width, and control the stacking position of the fill and stroke. You can change these properties for individual, selected characters; selected Source Text keyframes; all text in a layer; or all text across multiple selected layers.
Add a stroke (outline) to text
Change text fill or stroke colorThe text you enter gets its color from the Fill Color and Stroke Color controls in the upper-right corner of the Character panel. Select text to change its color after the text has already been entered.
and
then click anywhere on-screen to sample the color.
.
or Set
To White
button.