Look up some brushes. You can create any brush by settings alone.
CTRL+A then CTRL+T = Select everything on the given layer and set them for transforming. Ridiculously useful.
Preserve Opacity makes it so you can't add new pixels to a layer, you can only draw on what you've already made.
Clipping Group does the same thing, but it uses the previous layer as your boundary instead. Cannot stress how much I use this.
Pressing Tab pushes your windows aside and gives you more room to see your canvas.
Binary Brush for all your pixel needs.
Cut+Paste a picture into SAI as it's own layer. Make it Clipping group to a layer you want to texture. Set its MODE to "Overlay". Lower opacity. Ta-Daaaa, you have a texture.
Look up some brushes. You can create any brush by settings alone.
CTRL+A then CTRL+T = Select everything on the given layer and set them for transforming. Ridiculously useful.
Preserve Opacity makes it so you can't add new pixels to a layer, you can only draw on what you've already made.
Clipping Group does the same thing, but it uses the previous layer as your boundary instead. Cannot stress how much I use this.
Pressing Tab pushes your windows aside and gives you more room to see your canvas.
Binary Brush for all your pixel needs.
Cut+Paste a picture into SAI as it's own layer. Make it Clipping group to a layer you want to texture. Set its MODE to "Overlay". Lower opacity. Ta-Daaaa, you have a texture.
Oh I'll go take a look at the stream then! Drawing with a mouse is pretty hard. You could try to do a line art layer and draw by clicking where you want the lines to go if you think that might be easier.